Drying oven for tobacco shred moisture detection

Abstract

The utility model discloses a drying oven for tobacco shred moisture detection, which relates to the technical field of production detection equipment in the tobacco industry and comprises a drying oven main body erected on a horizontal plane, and a plurality of layers of detection mechanisms are arranged in the drying oven main body and used for measuring the quality of tobacco shred samples before and after drying. A tobacco shred sample box bearing tobacco shred samples is placed on the detection mechanism, then the tobacco shred sample box and the detection mechanism are installed in the drying box body, the detection mechanism can weigh and analyze the multiple tobacco shred samples at a time, the detection time is shortened, the detection process is simplified, meanwhile, the drying box integrates drying, cooling and weighing functions, and the detection efficiency is improved. According to the tobacco shred moisture detection device, the integration of the detection process is realized, so that the transfer frequency of a tobacco shred sample in the detection process is remarkably reduced, errors caused by the influence of air humidity on the sample in the transfer process are effectively prevented, and the reliability of tobacco shred moisture detection is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the tobacco industry production detection equipment technical field, especially relate to a drying oven for tobacco moisture content detection. BACKGROUND

[0002] Tobacco moisture content detection is an important link of cigarette production and quality control, and tobacco moisture content will directly affect the storage stability of cigarette products and the smoking experience of consumers. At present, the tobacco industry mainly uses drying method to detect tobacco moisture content, and the specific process is as follows: first, the mass of tobacco sample is weighed; second, the sample is placed in the oven for drying treatment; then, the dried sample is transferred to the dryer for cooling; finally, the cooled tobacco sample is weighed, and the moisture content is calculated. However, the traditional detection method involves multiple sample transfers, and the sample is easily affected by environmental humidity during this process, which has the risk of sample confusion, and when detecting multiple samples, it is necessary to weigh and calculate one by one, which takes a long time. SUMMARY

[0003] The utility model aims at providing a drying oven for tobacco moisture content detection, which can realize sample drying, cooling and weighing in the same equipment without secondary transfer cooling process. In addition, the drying oven supports weighing multiple samples at a time and can directly output stable and reliable moisture detection results. The specific technical scheme is as follows:

[0004] A drying oven for tobacco moisture content detection, comprising a drying box main body, a plurality of detection mechanisms are arranged in the drying box main body to measure the mass of tobacco sample before and after drying, a temperature sensor and a humidity sensor are arranged in the drying box main body, a control panel is installed outside the drying box main body, the temperature sensor and the humidity sensor are electrically connected with the control panel, air inlets and air outlets are arranged on opposite ends of the drying box main body, and the air inlets are connected with external gas generating devices through pipelines.

[0005] Preferably, a plurality of sliding installation grooves are arranged on the inner side of the drying box main body, contacts are arranged in the sliding installation grooves, the contacts are electrically connected with the control panel, the detection mechanisms are slidingly installed in the sliding installation grooves, elastic contact assemblies are arranged at one end of the detection mechanisms matched with the sliding installation grooves, the circuits on the detection mechanisms are connected to the elastic contact assemblies, and the detection mechanisms are electrically connected with the control panel through the elastic contact assemblies.

[0006] Preferably, the detection mechanism comprises a bearing net plate, a bearing groove and a high-temperature-resistant weight, the bearing net plate is slidingly arranged in the sliding installation groove, the elastic contact assembly is installed at the side end face of the bearing net plate, a plurality of bearing grooves are arranged on the bearing net plate, the high-temperature-resistant weight is installed in the bearing groove, and the circuit of the high-temperature-resistant weight is connected to the elastic contact assembly.

[0007] Preferably, the bearing groove is a circular groove with a groove depth of 1cm, and the bearing groove is used to place a tobacco sample box.

[0008] Preferably, the side of the bearing groove is provided with a digital number.

[0009] Preferably, the elastic contact assembly comprises an insulating elastic contact, a spring and a conductive contact point, the side of the bearing net plate is provided with an installation groove, one end of the spring is connected with the insulating elastic contact, the other end of the spring is connected with the bottom of the installation groove, and the conductive contact point is installed on the top of the insulating elastic contact and connected with the circuit of the high-temperature-resistant weight.

[0010] Preferably, a closing door is rotatably arranged on the front face of the drying box body.

[0011] Preferably, an end cover is detachably arranged on the air outlet.

[0012] Compared with the prior art, the drying oven has the following beneficial effects:

[0013] 1. The drying oven for tobacco moisture detection is provided, which integrates drying, cooling and weighing functions, realizes the integration of the detection process, significantly reduces the transfer times of the tobacco sample in the detection process, effectively prevents the error caused by the influence of air humidity during the transfer process, and significantly improves the reliability of the tobacco moisture detection.

[0014] 2. The bearing net plate in the drying oven is provided with a plurality of bearing grooves capable of independent weighing, so that the drying oven can weigh a plurality of tobacco samples at one time, and through a simple computer program, the moisture of each sample is calculated, and the result is displayed on the display screen of the control panel, thereby providing intuitive and accurate data for experimental operators. This function greatly simplifies the operation steps of the experiment and reduces the detection time.

[0015] 3. The drying oven is provided with a sample placing partition plate (bearing net plate) with a fixed number, which realizes the precise positioning and fixing of the tobacco sample box, effectively avoids the possibility of sample confusion, reduces the error of experimental operators in sample management, and ensures that the detection experiment is highly precise and efficient.

[0016] 4. The supporting net plate in the oven is designed in a net structure, which ensures the smoothness of the hot air in the drying and heating process, makes the tobacco sample evenly heated, and thus improves the accuracy of the detection result. Meanwhile, in the cooling stage, the net structure also ensures the smooth circulation of the dry cold air, effectively accelerates the cooling speed of the tobacco sample, and further improves the detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical schemes of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0018] Fig. 1 is the overall structure front view of the present application.

[0019] Fig. 2 is the overall structure (without closed door) front view of the present application.

[0020] Fig. 3 is the overall structure (without closed door) three-dimensional structure schematic view of the present application.

[0021] Fig. 4 is the overall structure schematic view of the detection mechanism of the present application.

[0022] Main drawing mark explanation:

[0023] 100 - drying box main body, 110 - temperature sensor, 120 - humidity sensor, 130 - control panel, 140 - air inlet, 150 - air outlet, 151 - end cover, 160 - sliding installation groove, 170 - closed door, 200 - detection mechanism, 210 - elastic contact assembly, 211 - insulating elastic contact, 220 - bearing net plate, 230 - bearing groove, 231 - tobacco sample box, 240 - high-temperature-resistant weighing device. DETAILED DESCRIPTION

[0024] The technical schemes in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the present application.

[0025] In the description of the utility model, it is necessary to explain, the term "center", "longitudinal", "lateral" "upper", "lower", "front", "rear" "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side" and so on the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model.

[0026] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than and so on are not included in the number, above, below, within and so on are understood as including the number. If the terms "first", "second", "third" are described, it is only for the purpose of description and for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0027] In the description of the utility model, it is necessary to explain, unless otherwise specified and limited, the terms "installation", "connection", "connection", "setting" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integral connection; it can be mechanical connection, can also be electrical connection; it can be directly connected, can also be indirectly connected through intermediate medium, can be the communication between 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. The embodiments will be described below according to the overall structure of the utility model.

[0028] Embodiment

[0029] As Figs. 1 to 4The illustrated, a kind of for tobacco moisture detection oven, including erect installation on horizontal plane oven main body 100, the oven main body 100 inside is provided with several layers detection mechanism 200 to measure the mass before and after tobacco sample drying, the design mainly has three layers the detection mechanism 200 in this design, when drying detection, tobacco sample box 231 with tobacco sample is placed on the detection mechanism 200, then together with the detection mechanism 200 installation in the oven main body 100 inside can be, the oven main body 100 is provided with temperature sensor 110 and humidity sensor 120, the temperature sensor 110 and the humidity sensor 120 are used to carry out real-time detection to the temperature and humidity in oven, ensure the normality of oven (detection) environment, the oven main body 100 is installed with control panel 130 outside, the detection value of oven is monitored in real time by the control panel 130 and the heating temperature of oven, drying duration is set, the temperature sensor 110 and humidity sensor 120 are electrically connected with the control panel 130, the opposite ends of the oven main body 100 are provided with air inlet 140 and air outlet 150, the air inlet 140 is connected with external gas generating device by pipeline, and the air inlet 140 is selectively accessed to cool or dry hot air, the air outlet 150 is detachably provided with end cover 151, the air outlet 150 is controlled by the end cover 151 to open and close, to avoid when drying or drying is completed, moisture re-enters from the air outlet 150 to influence the measured value of tobacco.In the front of the oven main body 100, rotatably provided with closure door 170, the closure door 170 is rotatably installed on the oven main body 100 by hinge.

[0030] Preferably, the inside of the drying box body 100 is provided with a plurality of sliding installation grooves 160, and each pair of sliding installation grooves 160 on both sides is matched with a detection mechanism 200. The detection mechanism 200 is carried through the sliding installation grooves 160, and the line connection between the detection mechanism 200 and the control panel 130 is also realized through the sliding installation grooves 160. Specifically, the sliding installation grooves 160 are provided with contacts, and the contacts are electrically connected with the control panel 130. The detection mechanism 200 is slidingly installed in the sliding installation grooves 160, and one end of the detection mechanism 200 matched with the sliding installation grooves 160 is provided with an elastic contact assembly 210. The circuit on the detection mechanism 200 is collected on the elastic contact assembly 210, and the detection mechanism 200 and the control panel 130 are electrically connected through the elastic contact assembly 210. When the detection mechanism 200 is slidingly inserted into the sliding installation grooves 160, the elastic contact assembly 210 is popped out from the side of the detection mechanism 200, and is pressed to the contact under the action of elasticity to realize electrical connection.

[0031] In some preferred embodiments, the detection mechanism 200 comprises a bearing net plate 220, a bearing groove 230 and a high-temperature-resistant weight 240. It is worth mentioning that the bearing net plate 220 is made of stainless steel mesh material and is in the shape of a rectangular basket. In order to facilitate the installation of the elastic contact assembly 210, opposite sides of the bearing net plate 220 are provided with installation strip plates. The bearing net plate 220 is slidingly installed in the sliding installation grooves 160 through the installation strip plates. The elastic contact assembly 210 is installed at the installation strip plates at the side end of the bearing net plate 220. The bearing net plate 220 is provided with a plurality of bearing grooves 230. Specifically, the bearing grooves 230 are circular grooves with a groove depth of 1 cm. The bearing grooves 230 are used to place tobacco sample boxes 231. The setting of the groove depth can facilitate the fixation of the tobacco sample boxes 231. The high-temperature-resistant weight 240 is installed in the bearing groove 230. The circuit of the high-temperature-resistant weight 240 is collected on the elastic contact assembly 210, and the high-temperature-resistant weight 240 and the control panel 130 are electrically connected through the elastic contact assembly 210.

[0032] In some preferred embodiments, the side of the bearing groove 230 is provided with a digital number. Each bearing groove 230 corresponds to a digital number, and the control panel 130 can record and feedback real-time values according to each digital number.

[0033] Preferably, the elastic contact assembly 210 comprises an insulating elastic contact 211, a spring and a conductive contact point, the side of the bearing net plate 220 is provided with a mounting groove 221, one end of the spring is connected with the insulating elastic contact 211, the other end is connected with the bottom of the mounting groove 221, the conductive contact point is installed on the top of the insulating elastic contact 211 and is connected with the circuit of the high-temperature-resistant weighter 240. When connected, the conductive contact point is driven to stably connect with the contact point by the elastic force of the spring.

[0034] Next, the operation steps and detection methods in this embodiment are described in detail to make those skilled in the art better understand the utility model:

[0035] S1: Take out the bearing net plate 220, place the cut tobacco sample box 231 with cut tobacco samples in the bearing groove 230, and fill the bearing groove 230 on the bearing net plate 220 with cut tobacco samples;

[0036] S2: Slide the bearing net plate 220 with the cut tobacco sample box 231 into the sliding installation groove 160, and place it inside the drying box body 100 through the sliding installation groove 160;

[0037] S3: Start the power supply, record the weight of cut tobacco in each number corresponding cut tobacco sample box 231 through the control panel 130 at this time, start the drying box to dry the cut tobacco, and set the drying time and drying temperature through the control panel 130 to dry;

[0038] S4: Hot air enters from the air inlet 140, at this time, the drying box body 100 is in a drying state, when the set drying time is reached, the oven stops heating, and the drying is completed. It is worth noting that during the drying process, the air outlet 150 is always kept open to prevent the internal pressure from being too high, and to exhaust the water vapor generated during the drying process;

[0039] S5: After drying, open the air inlet 140 to make dry cold air enter to cool the sample;

[0040] S6: The cut tobacco after drying is measured and recorded again through the control panel 130, and the moisture content of each sample can be calculated by substituting the existing computer program into the moisture calculation formula

(sample mass before drying-sample mass after cooling) / sample mass after cooling*100%

[0041] In summary, the utility model provides a kind of oven for tobacco moisture detection, by integrating drying, cooling and weighing function, the integration of detection process is realized, to significantly reduce the transfer times of tobacco sample in detection process, effectively prevent the error caused by air humidity in the transfer process of sample, significantly improve the reliability of tobacco moisture detection;The utility model provides a plurality of load-bearing grooves capable of independent weighing are arranged on the supporting net plate in the oven of the utility model, so that the oven can realize the weighing of multiple tobacco samples at a time, and by simple computer program, the moisture of each sample is calculated, and the result is displayed on the display screen of control panel, which provides intuitive and accurate data for experimental operators.This function greatly simplifies the operation steps of experiment, reduces detection time;The utility model provides that sample placing partition (supporting net plate) with fixed number is arranged in the oven, realizes the accurate positioning and fixing of tobacco sample box, effectively avoids the possibility of sample confusion, reduces the error of experimental operators in sample management, ensures that detection experiment is carried out with high precision and high efficiency;The supporting net plate in the oven of the utility model adopts net structure design, and this innovative feature ensures the smoothness of hot air in the drying and heating process, so that tobacco sample is evenly heated, thereby improving the accuracy of detection result.At the same time, in the cooling stage, the net structure also ensures the smooth flow of dry cold air, effectively accelerates the cooling speed of tobacco sample, further improves detection efficiency.

[0042] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and example, and these descriptions are not intended to limit the utility model to the precise forms disclosed, and it is obvious that many changes and variations can be made according to the above-mentioned teaching, although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, the purpose of selecting and describing exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can make modifications, replacements, modifications and various different choices and changes to the embodiments without creative contribution after reading the specification without departing from the principles and purposes of the utility model, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A drying oven for tobacco leaf moisture detection, characterized in that, The application relates to a tobacco drying box, which comprises a drying box body (100) provided with a plurality of layer detection mechanisms (200) for measuring the mass of tobacco samples before and after drying, a temperature sensor (110) and a humidity sensor (120) arranged in the drying box body (100), a control panel (130) mounted on the outside of the drying box body (100), the temperature sensor (110) and the humidity sensor (120) being electrically connected with the control panel (130), and an air inlet (140) and an air outlet (150) penetrating through the opposite ends of the drying box body (100), wherein the air inlet (140) is connected with an external gas generating device through a pipeline.

2. A drying oven for tobacco moisture detection according to claim 1, characterized in that, A plurality of sliding installation grooves (160) are arranged on the inner side of the drying box body (100), the sliding installation grooves (160) are provided with contacts, the contacts are electrically connected with the control panel (130), the detection mechanisms (200) are slidingly installed in the sliding installation grooves (160), one end of the detection mechanisms (200) is provided with an elastic contact assembly (210) matched with the sliding installation grooves (160), the circuit of the detection mechanisms (200) is gathered on the elastic contact assembly (210), and the detection mechanisms (200) are electrically connected with the control panel (130) through the elastic contact assembly (210).

3. A cabinet for tobacco moisture detection according to claim 2, characterized in that, The detection mechanisms (200) comprise a bearing net plate (220), bearing grooves (230) and high-temperature-resistant scales (240), the bearing net plate (220) is slidingly arranged in the sliding installation grooves (160), the elastic contact assembly (210) is arranged at the side end face of the bearing net plate (220), a plurality of bearing grooves (230) are arranged on the bearing net plate (220), and the high-temperature-resistant scales (240) are arranged in the bearing grooves (230), and the circuit of the high-temperature-resistant scales (240) is gathered on the elastic contact assembly (210).

4. A cabinet for tobacco moisture detection according to claim 3, characterized in that, The bearing grooves (230) are circular grooves with a groove depth of 1cm, and the bearing grooves (230) are used for placing tobacco sample boxes (231).

5. A cabinet for tobacco moisture detection according to claim 3, characterized in that, Digital numbers are arranged on the side of the bearing grooves (230).

6. A cabinet for tobacco moisture detection according to claim 3, characterized in that, The elastic contact assembly (210) comprises an insulating elastic contact (211), a spring and a conductive contact, a mounting groove (221) is arranged on the side of the bearing net plate (220), one end of the spring is connected with the insulating elastic contact (211), the other end of the spring is connected with the bottom of the mounting groove (221), the conductive contact is arranged on the top of the insulating elastic contact (211) and is electrically connected with the circuit of the high-temperature-resistant scales (240).

7. A cabinet for tobacco moisture detection according to claim 1, characterized in that, A closing door (170) is rotationally arranged on the front face of the drying box body (100).

8. A cabinet for tobacco moisture detection according to claim 1, characterized in that, A cover (151) is detachably arranged on the air outlet (150).

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