Drying oven for measuring moisture of tobacco leaf sample

Abstract

The utility model relates to the technical field of tobacco leaf moisture detection, and discloses a drying oven for measuring moisture of a tobacco leaf sample. The oven for measuring the moisture of the tobacco leaf sample comprises a shell, an end cover is movably installed at the front end of the shell, a sealing ring is installed in the end cover in an embedded mode, a sensor is installed in the center of the end cover in a penetrating mode, a handle is fixedly installed on the front side of the end cover, and a driving motor is installed at the rear end of the shell in a penetrating mode. A fixing frame is installed on the outer side of the driving motor in a penetrating mode, an electric heating pipe is fixedly installed in the shell, a connecting ring is fixedly installed in the shell, and when the driving motor drives the supporting frame to rotate through a gear and a gear ring, a baffle in the supporting frame can drive tobacco leaves to rotate by a certain angle, and then the tobacco leaves can fall back to the lowest point of the supporting frame; in this way, the tobacco leaves can be continuously turned over in the tobacco leaf drying process, so that the tobacco leaves are heated more evenly, and the drying time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco moisture detection, in particular to an oven for measuring the moisture content of tobacco samples. Background Technique

[0002] The moisture detection of tobacco and tobacco products is the focus of process control and quality detection in the tobacco industry, and is also a key indicator for measuring the sensory properties of cigarettes. At the same time, the level of moisture control is an important indicator for effectively measuring the process control level of cigarette processing enterprises, and has guiding and reference functions for the evaluation of equipment performance, process capability assessment, and consumption index analysis in tobacco processing.

[0003] The existing Chinese utility model patent with the reference publication number of CN221269383U discloses a fully automatic constant temperature drying oven dedicated for tobacco moisture content detection, which includes: a constant temperature drying oven housing, several drying racks are arranged inside the constant temperature drying oven housing, several drying trays are arranged on each drying rack, and a weighing sensor is arranged between each drying tray and the corresponding drying rack. The weighing sensor is used to weigh the sample drying box without the test sample, the sample drying box with the test sample, and the sample drying box with the test sample and after drying to detect the tobacco moisture content. The fully automatic constant temperature drying oven dedicated for tobacco moisture content detection provided by the utility model integrates a weighing function through a weighing sensor, and can realize automatic weighing inside the constant temperature drying oven during the whole process of tobacco moisture content detection, avoiding the result deviation caused by human factors during the process of manually moving the sample drying box during external weighing, being able to speed up the detection speed, and at the same time avoiding the decrease in accuracy caused by improper manual operation.

[0004] In the existing oven, the relative position between the heating structure and the tobacco leaves is fixed, resulting in the tobacco leaves near the heating structure being dried first, the tobacco leaves cannot be evenly heated, and the tobacco leaves will block the movement of water vapor, affecting the detection result. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides an oven for measuring the moisture content of tobacco samples, which has the advantages of improving the detection accuracy and being able to evenly heat the tobacco leaves, and solves the above technical problems.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solutions: An oven for measuring the moisture content of tobacco leaf samples, comprising: a housing, a front end of the housing is movably installed with an end cover, a sealing ring is fitted and installed inside the end cover, a sensor is inserted and installed at the center of the end cover, a handle is fixedly installed on the front side of the end cover, a driving motor is inserted and installed at the rear end of the housing, a fixing frame is inserted and installed outside the driving motor, an electric heating tube is fixedly installed inside the housing, a connecting ring is fixedly installed inside the housing, a bearing is fixedly installed at the center of the connecting ring, a support frame is fixedly installed inside the bearing, a metal mesh is fitted and installed outside the support frame, a baffle is fixedly installed inside the support frame, a toothed ring is fitted and installed at the rear end of the support frame, and a gear is inserted and installed outside the rotating shaft of the driving motor; the end cover can close the front end of the housing.

[0009] As a preferred technical solution of the present utility model, the housing is cylindrical, the end cover is movably connected to the housing through a threaded structure, the inner diameter of the sealing ring is greater than the inner diameter of the support frame, and the rear end of the sealing ring contacts the connecting ring; the housing can limit the position of the electric heating tube.

[0010] As a preferred technical solution of the present utility model, the contact point of the sensor is located at the center of the support frame, and the handles are symmetrically installed on the left and right sides of the end cover with the center of the end cover as a reference; the handles can facilitate the rotation of the end cover.

[0011] As a preferred technical solution of the present utility model, the driving motor penetrates through the rear end of the housing, the front end of the fixing frame is fixedly connected to the housing, the driving motor is fixedly connected to the housing through the fixing frame, and there are five electric heating tubes; the electric heating tubes can increase the temperature inside the housing and dry the tobacco leaves.

[0012] As a preferred technical solution of the present utility model, the connecting rings are symmetrically installed inside the housing before and after with the center of the support frame as a reference, and the support frame is rotatably connected to the housing through a bearing; the bearing can facilitate the rotation of the support frame.

[0013] As a preferred technical solution of the present utility model, four opening structures matching the metal mesh are arranged on the surface of the support frame, the radian of the metal mesh matches that of the support frame, there are four baffles, and the baffles are installed inside the support frame at intervals of forty-five degrees with the axis of the support frame as a reference; the metal mesh can facilitate the direct transfer of heat to the tobacco leaves.

[0014] As a preferred technical solution of the present utility model, an annular protrusion with an inner diameter matching the outer diameter of the toothed ring is arranged at the rear end of the support frame, the toothed ring is fixedly connected to the support frame, and the gear meshes with the toothed ring; the support frame can limit the positions of the metal mesh and the baffle.

[0015] Compared with the prior art, the utility model provides an oven for measuring the moisture content of tobacco leaf samples, which has the following beneficial effects:

[0016] 1. Through the setting of the driving motor, the driving motor is inserted and installed at the rear end of the outer shell and fixedly connected to the outer shell through a fixing frame. A gear is inserted and installed on the outer side of the rotating shaft of the driving motor. A ring-shaped protrusion with an inner diameter matching the outer diameter of the toothed ring is arranged at the rear end of the support frame. The toothed ring is fixedly connected to the support frame, and the gear meshes with the toothed ring. Four opening structures matching the metal mesh are arranged on the surface of the support frame. The radian of the metal mesh matches that of the support frame. When the driving motor drives the support frame to rotate through the gear and the toothed ring, the baffle inside the support frame will drive the tobacco leaves to rotate by a certain angle, and then the tobacco leaves will fall back to the lowest point of the support frame and be driven by the next baffle. This way can continuously turn the tobacco leaves during the drying process of the tobacco leaves, so that the tobacco leaves are heated more evenly and the drying time is shortened.

[0017] 2. Through the setting of the baffle, there are four baffles, and the baffles are installed inside the support frame at an interval of 45 degrees with the axis of the support frame as the reference. When the support frame rotates, the baffle will not only drive the tobacco leaves to rotate, but also drive part of the air inside the outer shell to rotate, so that the evaporated water vapor can be fully mixed with the internal air. And the sensor penetrates the end cover, and the rear end contact is located at the center of the support frame. This way can avoid the water vapor from gathering in the interlayer between the tobacco leaves and make the humidity inside the outer shell more uniform to improve the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is a schematic diagram of the installation structure of the sealing ring of the utility model;

[0020] Figure 3 is a schematic diagram of the installation structure of the support frame of the utility model;

[0021] Figure 4 is a schematic diagram of the installation structure of the toothed ring of the utility model;

[0022] Among them: 1. Outer shell; 11. End cover; 12. Sealing ring; 13. Sensor; 14. Handle; 15. Driving motor; 16. Fixing frame; 17. Electric heating tube; 18. Connecting ring; 19. Bearing; 110. Support frame; 111. Metal mesh; 112. Baffle; 113. Toothed ring; 114. Gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes in detail the implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Please refer to Figure 1 - Figure 4 , in this embodiment, an oven for measuring the moisture content of tobacco leaf samples includes: a housing 1, a end cover 11 is movably installed at the front end of the housing 1, a sealing ring 12 is fitted and installed inside the end cover 11, a sensor 13 is inserted and installed at the center of the end cover 11, a handle 14 is fixedly installed on the front side of the end cover 11, a driving motor 15 is inserted and installed at the rear end of the housing 1, a fixing frame 16 is inserted and installed outside the driving motor 15, an electric heating tube 17 is fixedly installed inside the housing 1, a connecting ring 18 is fixedly installed inside the housing 1, a bearing 19 is fixedly installed at the center of the connecting ring 18, a support frame 110 is fixedly installed inside the bearing 19, a metal mesh 111 is fitted and installed outside the support frame 110, a baffle 112 is fixedly installed inside the support frame 110, and a toothed ring 113 is fitted and installed at the rear end of the support frame 110. A gear 114 is inserted and installed outside the rotating shaft of the driving motor 15.

[0027] The housing 1 is cylindrical, the end cover 11 is movably connected to the housing 1 through a threaded structure, the inner diameter of the sealing ring 12 is larger than the inner diameter of the support frame 110, and the rear end of the sealing ring 12 is in contact with the connecting ring 18.

[0028] The contact of the sensor 13 is located at the center of the support frame 110, and the grip 14 is symmetrically installed on the left and right sides of the end cover 11 with the center of the end cover 11 as the reference.

[0029] The driving motor 15 penetrates through the rear end of the housing 1. The front end of the fixing frame 16 is fixedly connected to the housing 1. The driving motor 15 is fixedly connected to the housing 1 through the fixing frame 16, and there are five electric heating tubes 17.

[0030] The connecting ring 18 is symmetrically installed inside the housing 1 before and after with the center of the support frame 110 as the reference. The support frame 110 is rotationally connected to the housing 1 through the bearing 19.

[0031] Four opening structures matching the metal mesh 111 are provided on the surface of the support frame 110. The radian of the metal mesh 111 matches that of the support frame 110. There are four baffle plates 112, and the baffle plates 112 are installed inside the support frame 110 at intervals of 45 degrees with the axis of the support frame 110 as the reference.

[0032] An annular protrusion with an inner diameter matching the outer diameter of the gear ring 113 is provided at the rear end of the support frame 110. The gear ring 113 is fixedly connected to the support frame 110, and the gear 114 meshes with the gear ring 113.

[0033] Specifically, the housing 1 can limit the position of the electric heating tube 17, the end cover 11 can seal the front end of the housing 1, the sealing ring 12 can play a sealing role, the sensor 13 can detect the humidity inside the housing 1, the grip 14 can facilitate the rotation of the end cover 11, the driving motor 15 can drive the gear ring 113 to rotate through the gear 114, the fixing frame 16 can limit the position of the driving motor 15, the electric heating tube 17 can increase the temperature inside the housing 1 and dry the tobacco leaves, the connecting ring 18 can form a cylindrical cavity between the inner wall of the housing 1 and the support frame 110 to facilitate the installation of the electric heating tube 17 below the support frame 110, the bearing 19 can facilitate the rotation of the support frame 110, the support frame 110 can limit the positions of the metal mesh 111 and the baffle plate 112, the metal mesh 111 can facilitate the direct transfer of heat to the tobacco leaves, the baffle plate 112 can facilitate the turning of the tobacco leaves when the support frame 110 rotates, and the gear ring 113 can drive the support frame 110 to rotate.

[0034] In use, the drive motor 15 is inserted and installed at the rear end of the housing 1 and fixedly connected to the housing 1 through the fixing bracket 16. A gear 114 is inserted and installed on the outer side of the rotating shaft of the drive motor 15. A ring-shaped protrusion with an inner diameter matching the outer diameter of the toothed ring 113 is provided at the rear end of the support frame 110. The toothed ring 113 is fixedly connected to the support frame 110. The gear 114 meshes with the toothed ring 113. Four opening structures matching the metal mesh 111 are provided on the surface of the support frame 110. The curvature of the metal mesh 111 matches that of the support frame 110. When the drive motor 15 drives the support frame 110 to rotate through the gear 114 and the toothed ring 113, the baffle 112 inside the support frame 110 will drive the tobacco leaves to rotate by a certain angle. Then the tobacco leaves will fall back to the lowest point of the support frame 110 and be driven by the next baffle 112. This way can continuously turn the tobacco leaves during the drying process of the tobacco leaves, so that the tobacco leaves are heated more evenly, thereby shortening the drying time. There are four baffles 112, and the baffles 112 are installed inside the support frame 110 at intervals of 45 degrees with the axis of the support frame 110 as the reference. When the support frame 110 rotates, the baffle 112 will not only drive the tobacco leaves to rotate, but also drive part of the air inside the housing 1 to rotate, so that the evaporated water vapor can be fully mixed with the internal air. And the sensor 13 penetrates the end cover 11, and the rear end contact is located at the center of the support frame 110. This way can prevent the water vapor from gathering in the interlayer between the tobacco leaves and make the humidity inside the housing 1 more uniform to improve the detection accuracy.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oven for measuring the moisture content of tobacco leaf samples, characterized in that, Including: A housing (1), with an end cover (11) movably installed at the front end of the housing (1). A sealing ring (12) is fitted and installed inside the end cover (11). A sensor (13) is inserted through the center of the end cover (11). A grip (14) is fixedly installed on the front side of the end cover (11). A driving motor (15) is inserted through the rear end of the housing (1). A fixing frame (16) is inserted through the outside of the driving motor (15). An electric heating tube (17) is fixedly installed inside the housing (1). A connecting ring (18) is fixedly installed inside the housing (1). A bearing (19) is fixedly installed at the center of the connecting ring (18). A support frame (110) is fixedly installed inside the bearing (19). A metal mesh (111) is fitted and installed on the outside of the support frame (110). A baffle (112) is fixedly installed inside the support frame (110). A toothed ring (113) is fitted and installed at the rear end of the support frame (110). A gear (114) is inserted through the outside of the rotating shaft of the driving motor (15).

2. The oven for measuring the moisture content of tobacco leaf samples according to claim 1, characterized in that: The housing (1) is cylindrical. The end cover (11) is movably connected to the housing (1) through a threaded structure. The inner diameter of the sealing ring (12) is larger than the inner diameter of the support frame (110), and the rear end of the sealing ring (12) contacts the connecting ring (18).

3. The oven for measuring the moisture content of tobacco leaf samples according to claim 1, characterized in that: The contact point of the sensor (13) is located at the center of the support frame (110). The grip (14) is symmetrically installed on the left and right sides of the end cover (11) with the center of the end cover (11) as the reference.

4. The oven for measuring the moisture content of tobacco leaf samples according to claim 1, characterized in that: The driving motor (15) penetrates through the rear end of the housing (1). The front end of the fixing frame (16) is fixedly connected to the housing (1). The driving motor (15) is fixedly connected to the housing (1) through the fixing frame (16). There are five electric heating tubes (17).

5. The oven for measuring the moisture content of tobacco leaf samples according to claim 1, characterized in that: The connecting ring (18) is symmetrically installed inside the housing (1) before and after with the center of the support frame (110) as the reference. The support frame (110) is rotatably connected to the housing (1) through the bearing (19).

6. The oven for measuring the moisture content of tobacco leaf samples according to claim 1, characterized in that: The surface of the support frame (110) is provided with four opening structures matching the metal mesh (111). The radian of the metal mesh (111) matches that of the support frame (110). There are four baffles (112), and the baffles (112) are installed inside the support frame (110) at intervals of forty-five degrees with the axis of the support frame (110) as the reference.

7. The oven for measuring the moisture content of tobacco leaf samples according to claim 1, characterized in that: The rear end of the support frame (110) is provided with an annular protrusion whose inner diameter matches the outer diameter of the toothed ring (113). The toothed ring (113) is fixedly connected to the support frame (110), and the gear (114) meshes with the toothed ring (113).

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