Uniform drying machine for tea leaves

Abstract

The utility model relates to the technical field of tea production, in particular to a tea uniform drying machine which comprises a processing box, a heating mechanism and a turning mechanism are installed in the processing box, a material receiving disc is installed at the bottom of the turning mechanism in a sliding mode, and the heating mechanism comprises a first air heater and a second air heater. The first hot-air blower and the second hot-air blower are fixedly mounted at the top end in the processing box, and the turning mechanism comprises a driving motor and a rotating drum. A driving motor, a first hot-air blower and a second hot-air blower are started through a PLC control panel, the driving motor drives a rotary drum to continuously rotate, so that tea leaves continuously roll over in a drum body, a manual tea frying mode is simulated, the fragrance and taste of the tea leaves are better guaranteed, the tea leaves can be pushed to advance to a certain height and then fall off through a convex barrier strip arranged on the inner wall of the rotary drum, and the tea leaves are more convenient to use. And excessive concentration of local heat caused by bottom tea precipitation is avoided, and the heating uniformity of the tea is improved.

Description

Technical Field

[0001] This utility model relates to the field of tea production technology, specifically a uniform tea drying machine. Background Technology

[0002] The main function of a tea drying machine is to remove excess moisture from tea leaves, achieving the appropriate degree of dryness for easy storage and further processing, and preventing mold and spoilage. Simultaneously, it induces changes in the chemical composition of the tea leaves, enhancing aroma, fixing shape, and improving the color, aroma, taste, and appearance of the tea, thus optimizing its quality. Furthermore, it increases production efficiency, enabling large-scale, standardized tea drying operations and ensuring the stability and consistency of tea product quality.

[0003] As disclosed in the patent announcement CN207540325U, a batch tea uniform drying machine includes a main body; a feed inlet is opened on the upper left side of the main body; a secondary body is fixed to the right side of the feed inlet; an electric heating wire is horizontally fixed inside the secondary body; a first conveyor belt is fixed directly below the feed inlet; a first fixed shaft is fixed to the upper end of the first conveyor belt; a sorting rod is fixed on the first fixed shaft; a second conveyor belt is fixed to the lower end of the first conveyor belt; an inclined plate is fixed below the second conveyor belt; a screen is fixed below the inclined plate; a third hinge is fixed to the right end of the screen; the third hinge is connected to a second connecting rod; the right end of the second connecting rod is connected to a second hinge; a first connecting rod is connected to the right side of the second hinge; the right end of the first connecting rod is connected to a first hinge; a powder conveyor belt has a powder outlet at its right end; this utility model has high working efficiency, can dry tea in batches, and can dry tea uniformly.

[0004] However, when drying tea leaves, it is difficult to turn them over, which can easily lead to uneven heating, affecting the taste of the tea and making it difficult to bring out the aroma of the tea. To address this, we have proposed a uniform tea drying machine, which solves the problem of constant turning during the tea drying process of the present invention, and improves the practical effect and production quality of the present invention. Utility Model Content

[0005] The purpose of this invention is to provide a uniform tea drying machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A uniform tea drying machine includes a processing box. A heating mechanism and a turning mechanism are installed inside the processing box. A receiving tray is slidably installed at the bottom of the turning mechanism. The heating mechanism includes a first hot air blower and a second hot air blower, which are fixedly installed at the top of the processing box. The turning mechanism includes a drive motor and a rotating drum. One end of the rotating drum is fixedly connected to the output end of the drive motor, and the other end is rotatably connected to the inner wall of the processing box. The rotating drum has a plurality of evenly spaced ventilation holes, and a convex baffle is fixedly installed on the inner wall of the rotating drum.

[0008] Preferably, there are eight convex baffles, which are evenly arranged on the inner wall of the rotating cylinder. The convex baffles have an arc-shaped cross-section and their edges are smoothly connected to the inner wall of the rotating cylinder.

[0009] Preferably, the outer side of the rotating drum has a feed inlet, the feed inlet is fastened with a cover, and a convenient handle is fixedly provided at the top of the cover.

[0010] Preferably, an air outlet groove is provided on one side of the processing box, and an electric exhaust fan is fixedly installed inside the air outlet groove. A first filter screen and a second filter screen are fixedly installed on the side of the electric exhaust fan away from the rotating cylinder, and the inner diameter of the mesh of the first filter screen is larger than the inner diameter of the mesh of the second filter screen.

[0011] Preferably, the drive motor is fixedly installed on one side of the processing box, a temperature and humidity sensor is fixedly installed on the inner wall of the processing box, and a PLC control panel is fixedly installed on the outer wall of the processing box. The PLC control panel is electrically connected to the drive motor, the first hot air blower, the second hot air blower, the temperature and humidity sensor, and the electric exhaust fan.

[0012] Preferably, the receiving tray is fixedly provided with limiting slide bars on both sides, the inner wall of the processing box is fixedly provided with limiting slide grooves corresponding to the limiting slide bars, one end of the receiving tray is fixedly provided with a pull block, and one side of the processing box is hinged with an insulated box door.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This tea drying machine uses a drive motor to continuously rotate a drum, causing the tea leaves to tumble inside, simulating the manual tea-frying process. This better preserves the aroma and taste of the tea. Protruding baffles on the inner wall of the drum propel the tea leaves forward to a certain height before they fall, preventing excessive heat concentration in certain areas caused by tea leaves settling at the bottom, thus improving the evenness of heating. Furthermore, the arc-shaped baffles reduce impact damage to the tea leaves, ensuring their integrity.

[0015] 2. This tea uniform drying machine can collect tea residue that falls inside the drum during the drying process by using a receiving tray installed at the bottom of the drum, which is convenient for staff to clean and easy to use.

[0016] 3. In this uniform tea drying machine, during the drying process, the operator can adjust the heating time or the amount of water vapor inside the processing chamber based on the information fed back to the PLC control panel by the temperature and humidity sensor. When the humidity is too high, the electric exhaust fan is activated to quickly expel the water vapor inside the processing chamber, ensuring the drying effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the rotating drum of this utility model;

[0020] Figure 4 This is a schematic diagram of the receiving tray structure of this utility model.

[0021] In the diagram: 100, processing box; 101, receiving tray; 102, PLC control panel; 103, limit slide bar; 104, limit slide groove; 105, pull block; 106, insulated box door; 200, first hot air blower; 201, second hot air blower; 202, air outlet; 203, electric exhaust fan; 204, first filter screen; 205, second filter screen; 206, temperature and humidity sensor; 300, drive motor; 301, rotating drum; 302, convex baffle; 303, feed inlet; 304, cover; 305, convenient handle. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0024] A uniform tea drying machine includes a processing box 100. A heating mechanism and a turning mechanism are installed inside the processing box 100. A receiving tray 101 is slidably installed at the bottom of the turning mechanism. Limiting slide strips 103 are fixedly installed on both sides of the receiving tray 101. Limiting grooves 104 corresponding to the limiting slide strips 103 are fixedly installed on the inner wall of the processing box 100. A pull block 105 is fixedly installed at one end of the receiving tray 101. During the drying process, tea residue falling inside the rotating drum 301 can be collected through the receiving tray 101 installed at the bottom of the rotating drum 301, facilitating cleaning by staff. A heat-insulating door 106 is hinged to one side of the processing box 100.

[0025] In this embodiment, preferably, the heating mechanism includes a first hot air blower 200 and a second hot air blower 201, which are fixedly installed at the top of the processing box 100.

[0026] In this embodiment, preferably, the turning mechanism includes a drive motor 300 and a rotating drum 301. One end of the rotating drum 301 is fixedly connected to the output end of the drive motor 300, and the other end is rotatably connected to the inner wall of the processing box 100. The rotating drum 301 has a plurality of evenly spaced ventilation holes. Eight convex baffles 302 are fixedly arranged on the inner wall of the rotating drum 301. The convex baffles 302 have an arc-shaped cross-section, and their edges are smoothly connected to the inner wall of the rotating drum 301. A feed inlet 303 is provided on the outer side of the rotating drum 301. A cover 304 is fastened to the feed inlet 303. A convenient handle 305 is fixedly provided on the top of the cover 304. The drive motor 300 is fixedly installed on one side of the processing box 100. In use, the drive motor 300 drives the rotating drum 301 to rotate continuously, causing the tea leaves to tumble continuously inside the drum, simulating the manual tea-frying method, and better protecting the tea leaves. The aroma and taste of the leaves are enhanced by the convex baffles 302 on the inner wall of the rotating drum 301, which propel the tea leaves to a certain height before they fall, preventing excessive heat concentration in certain areas caused by tea leaves settling at the bottom and improving the uniformity of heating. A temperature and humidity sensor 206 is fixedly installed on the inner wall of the processing box 100, and a PLC control panel 102 is fixedly installed on the outer wall of the processing box 100. The PLC control panel 102 is electrically connected to the drive motor 300, the first hot air blower 200, the second hot air blower 201, the temperature and humidity sensor 206, and the electric exhaust fan 203. The first hot air blower 200 and the second hot air blower 201 continuously release hot air into the processing box 100, increasing the temperature inside the processing box 100, accelerating the evaporation of moisture from the tea leaves, and achieving the drying effect. During the drying process, the operator can adjust the heating time based on the information fed back to the PLC control panel 102 by the temperature and humidity sensor 206.

[0027] In this embodiment, preferably, an air outlet groove 202 is provided on one side of the processing box 100. An electric exhaust fan 203 is fixedly installed inside the air outlet groove 202. A first filter screen 204 and a second filter screen 205 are fixedly installed on the side of the electric exhaust fan 203 away from the rotating drum 301. The inner diameter of the mesh of the first filter screen 204 is larger than the inner diameter of the mesh of the second filter screen 205. When the humidity is too high, the electric exhaust fan 203 is activated to quickly discharge the water vapor inside the processing box 100, ensuring the drying effect. The setting of the first filter screen 204 and the second filter screen 205 can prevent dust and debris inside the processing box 100 from being discharged from the processing box 100, thus ensuring the air quality of the processing area.

[0028] In this embodiment of the tea uniform drying machine, when in use, first open the insulated box door 106, and place the tea to be dried into the inside of the rotating drum 301 through the feed port 303 on the outside of the rotating drum 301. Then close and lock the cover 304. The cover 304 and the rotating drum 301 can be fixed by a rotating buckle lock or a limit pin for easy use. After closing the insulated box door 106, start the drive motor 300, the first hot air fan 200 and the second hot air fan 201 through the PLC control panel 102. The drive motor 300 drives the rotating drum 301 to rotate continuously. The movement of the tea leaves inside the drum 301 causes them to tumble continuously, simulating the manual tea-frying process, thus better preserving the aroma and taste of the tea. The convex baffles 302 on the inner wall of the drum 301 push the tea leaves forward to a certain height before they fall, preventing excessive heat concentration in certain areas caused by tea leaves settling at the bottom, and improving the evenness of heating. During the tumbling process, the first and second hot air blowers 200 continuously release hot air into the processing chamber 100, increasing the internal temperature and accelerating the evaporation of moisture from the tea leaves, achieving the desired drying effect. During the drying process, operators can adjust the heating time or the amount of steam inside the processing chamber based on information fed back to the PLC control panel 102 by the temperature and humidity sensor 206. When the humidity is too high, the electric exhaust fan 203 is activated to quickly expel moisture from the processing chamber 100, ensuring the drying effect. Furthermore, during the drying process, the receiving tray 101 installed at the bottom of the drum 301 collects the tea leaves that fall inside, facilitating cleaning and providing convenience for operators. The curved cross-section of the baffle can reduce the impact damage to the tea leaves and ensure their integrity.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A uniform tea leaf drying machine comprising a processing box (100), characterized in that: The processing box (100) is internally provided with a heating mechanism and a turnover mechanism, and the turnover mechanism is slidably provided with a receiving tray (101) at the bottom; The heating mechanism comprises a first hot air blower (200) and a second hot air blower (201), and the first hot air blower (200) and the second hot air blower (201) are fixedly installed at the top end of the processing box (100); The turnover mechanism comprises a driving motor (300) and a rotating drum (301), one end of the rotating drum (301) is fixedly connected with the output end of the driving motor (300), the other end is rotatably connected with the inner wall of the processing box (100), the rotating drum (301) is uniformly provided with a plurality of air holes, and the inner wall of the rotating drum (301) is fixedly provided with a convex blocking strip (302).

2. The uniform tea leaf drying machine according to claim 1, characterized in that: The convex blocking strip (302) has eight convex blocking strips (302) which are uniformly arranged on the inner wall of the rotating drum (301), the convex blocking strip (302) has an arc cross section, and the edge thereof is smoothly connected with the inner wall of the rotating drum (301).

3. A tea uniform dryer as claimed in claim 2, wherein: The rotating drum (301) is provided with an inlet (303) on the outside, the inlet (303) is buckled with a cover (304), and the top end of the cover (304) is fixedly provided with a convenient handle (305).

4. The uniform tea leaf drying machine according to claim 1, characterized in that: One side of the processing box (100) is provided with an air outlet groove (202), the air outlet groove (202) is fixedly provided with an electric exhaust fan (203) inside, the electric exhaust fan (203) is fixedly provided with a first filter screen (204) and a second filter screen (205) away from one side of the rotating drum (301), and the inner diameter of the mesh hole of the first filter screen (204) is larger than that of the second filter screen (205).

5. The uniform tea leaf drying machine as claimed in claim 1, wherein: The driving motor (300) is fixedly installed on one side of the processing box (100), the inner wall of the processing box (100) is fixedly provided with a temperature and humidity sensor (206), the outer wall of the processing box (100) is fixedly provided with a PLC control panel (102), and the PLC control panel (102) is electrically connected with the driving motor (300), the first hot air blower (200), the second hot air blower (201), the temperature and humidity sensor (206) and the electric exhaust fan (203).

6. The uniform tea leaf drying machine as claimed in claim 1, wherein: The receiving tray (101) is fixedly provided with a limiting sliding strip (103) on both sides, the inner wall of the processing box (100) is fixedly provided with a limiting sliding groove (104) corresponding to the limiting sliding strip (103), one end of the receiving tray (101) is fixedly provided with a pulling block (105), and one side of the processing box (100) is hingedly provided with a heat preservation box door (106).

Images