Tea leaf drying device

Abstract

The utility model discloses a tea leaf drying device, which relates to the technical field of tea leaf processing equipment, and comprises an outer cylinder, a feeding port is arranged at the upper end of the outer cylinder, a blanking port is arranged at the lower end of the outer cylinder, a feeding cylinder is arranged on the feeding port, and a conveying plate is rotatably connected in the feeding cylinder; the driving mechanism is installed at the upper end of the outer cylinder, and the driving mechanism is connected with the input end of the conveying plate through a transmission assembly; the inner cylinder is installed in the outer cylinder through a fixing frame, a feeding port is formed in the position, corresponding to the feeding port, of the upper end of the inner cylinder, and a discharging port is formed in the lower end of the inner cylinder; the material supporting mechanism is rotationally connected into the inner cylinder, and the input end of the material supporting mechanism penetrates through the inner cylinder and the outer cylinder and is in transmission connection with the transmission assembly; according to the tea leaf drying device, tea leaves can be conveyed into the inner cylinder through the driving mechanism and the conveying plate, then the tea leaves are spread, baked, swept and scattered through the material supporting mechanism and the shifting and sweeping mechanism, the tea leaves can be evenly dried, and the drying efficiency of the tea leaves can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tea processing equipment, and in particular to a tea drying device. Background Technology

[0002] Tea drying is a crucial step in tea processing, primarily aimed at removing moisture from the tea leaves. High temperatures are used to extract moisture and aroma, thoroughly drying the tea and eliminating any grassy smell. This process also extends the tea's shelf life and enhances its flavor and aroma. Common tea drying methods include sun-drying, using a drying machine, and roasting. Among these, using a drying machine is a modern method that allows for rapid drying of tea leaves, improving production efficiency.

[0003] Existing tea drying machines all use trays to directly put tea leaves into the drying machine. During the drying process, the tea leaves cannot be turned over, which results in uneven drying and affects the quality of the tea. Utility Model Content

[0004] To overcome a deficiency described in the prior art, this utility model provides a tea drying device to solve the problem of not being able to turn the tea leaves during the drying process.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A tea drying apparatus, comprising:

[0007] The outer cylinder has a discharge port at its upper end and a discharge outlet at its lower end. A discharge cylinder is provided on the discharge port, and a conveying plate is rotatably connected inside the discharge cylinder.

[0008] A drive mechanism is installed at the upper end of the outer cylinder, and the drive mechanism is connected to the input end of the conveyor plate through a transmission assembly;

[0009] The inner cylinder is installed inside the outer cylinder by a fixing frame. The upper end of the inner cylinder is provided with a feed inlet corresponding to the feed port, and the lower end of the inner cylinder is provided with a discharge outlet.

[0010] The material support mechanism is rotatably connected inside the inner cylinder, and the input end of the material support mechanism passes through the inner cylinder and the outer cylinder and is connected to the transmission assembly for transmission.

[0011] A sweeping mechanism is fixedly installed inside the inner cylinder. The sweeping mechanism is used to move and / or sweep away the material on the material support mechanism.

[0012] Furthermore, the transmission component is a transmission shaft, which is mounted on the upper end of the outer cylinder via a mounting base. The transmission shaft is rotatably connected to the mounting base, with one end of the transmission shaft fixedly connected to the output end of the drive mechanism and the other end of the transmission shaft fixedly connected to the input end of the conveyor plate.

[0013] Furthermore, the material support mechanism includes a rotating shaft and multiple material support platforms. A rotating hole is provided at the center of the upper side of the inner cylinder. The rotating shaft is rotatably connected to the rotating hole. A limiting groove is provided on the rotating shaft. The limiting groove is engaged with the upper side of the inner cylinder. The upper end of the rotating shaft passes through the upper end of the outer cylinder to the outside and is equipped with a conical gear. A conical gear is provided on the transmission shaft. The conical gear meshes with the conical gear. Multiple material support platforms are located inside the inner cylinder and are vertically arranged and fixed on the rotating shaft.

[0014] Furthermore, the material support platform is provided with a plurality of evenly arranged fan-shaped blades, the distance between the plurality of fan-shaped blades is fan-shaped, and the vertical projections of the plurality of fan-shaped blades on the material support platform are staggered, so that the vertical projection of one side of the upper fan-shaped blade is located on the lower fan-shaped blade.

[0015] Furthermore, the sweeping mechanism includes multiple sweeping components, all of which are disposed inside the inner cylinder and located above multiple material support plates. Each sweeping component includes two brush rods and a fixing ring. The fixing rings are all sleeved on the rotating shaft. The outer side of the fixing ring is fixedly connected to one end of the two brush rods. The connecting ends of the two brush rods and the fixing rings are fixedly connected to the inner side of the inner cylinder.

[0016] Furthermore, one of the brush rods is provided with a long-bristled brush on the side facing the fan-shaped blade, and the other brush rod is provided with a short-bristled brush on the side facing the fan-shaped blade.

[0017] Furthermore, the bottom end of the long-bristled brush is in contact with the upper side of the fan-shaped blade, while the bottom end of the short-bristled brush is higher than the upper side of the fan-shaped blade.

[0018] Furthermore, the discharge port is located on the bottom side of the outer cylinder, and an inclined plate is provided at the bottom of the outer cylinder. The lower end of the inclined plate is located on the side of the discharge port, and the discharge port at the lower end of the inner cylinder is located above the inclined plate.

[0019] Furthermore, the outer cylinder is provided with an air inlet for connecting to the external heat medium and an air outlet for discharging the heat medium inside the outer cylinder on opposite sides, with the air inlet located near the lower end of the outer cylinder and the air outlet located near the upper end of the outer cylinder.

[0020] Furthermore, the upper end of the inner cylinder is provided with several air outlets.

[0021] In summary, the tea drying device provided by this utility model has the following technical effects:

[0022] The tea leaves are transported into the inner cylinder by the drive mechanism and conveyor plate. Then, the tea leaves are spread, dried and dispersed by the material support mechanism and sweeping mechanism, which can dry the tea leaves evenly and improve the drying efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0024] Figure 1 This is a schematic diagram of the overall left-side structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall right-side structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the transmission shaft structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the internal structure of the outer cylinder of this utility model;

[0028] Figure 5 This is a schematic diagram of the inner cylinder structure of this utility model;

[0029] Figure 6 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0030] Figure 7 This is a schematic diagram of the sweeping component structure of this utility model.

[0031] In the diagram: 1. Outer cylinder; 11. Feed port; 12. Discharge port; 13. Feeding cylinder; 131. Conveying plate; 14. Mounting base; 15. Inclined plate; 16. Air inlet; 17. Air outlet; 2. Drive mechanism; 21. Transmission shaft; 211. Bevel gear; 3. Inner cylinder; 31. Fixing frame; 32. Feed port; 33. Discharge port; 34. Rotary hole; 35. Air outlet; 4. Material support mechanism; 41. Rotating shaft; 411. Limiting groove; 412. Conical gear disc; 42. Material support platform; 421. Fan-shaped platform blade; 5. Sweeping assembly; 51. Brush rod; 511. Long brush; 512. Short brush; 52. Fixing ring. Detailed Implementation

[0032] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0035] Example:

[0036] refer to Figures 1-4 As shown, a tea drying device includes an outer cylinder 1, with a discharge port 11 at the upper end and a discharge port 12 at the lower end. A discharge cylinder 13 is provided on the discharge port 11, and a conveying plate 131 is rotatably connected inside the discharge cylinder 13. A drive mechanism 2, which is a motor, is installed on the upper end of the outer cylinder 1. A transmission shaft 21 is installed on the upper end of the outer cylinder 1 through a mounting base 14. The transmission shaft 21 is rotatably connected to the mounting base 14. One end of the transmission shaft 21 is fixedly connected to the output end of the drive mechanism 2. One end of the conveying plate 131 passes through the discharge cylinder 13 and is fixedly connected to the other end of the transmission shaft 21. The conveying plate 131 has two symmetrical grooves. The drive mechanism 2 drives the transmission shaft 21 to rotate, and the transmission shaft 21 drives the conveying plate 131 to rotate. The conveying plate 131 has a certain thickness, and the side of the conveying plate 131 is arc-shaped and adapted to the inner side of the discharge cylinder 13. By rotating the conveying plate 131, the discharge cylinder 13 can be alternately opened or closed.

[0037] The outer cylinder 1 is provided with an inspection port, and an inspection door is provided at the inspection port on the outer cylinder 1. The inspection door is rotatably connected to the outer cylinder 1 via a hinge.

[0038] refer to Figure 4 , Figure 5 and Figure 6As shown, an inner cylinder 3 is installed inside the outer cylinder 1 via a fixing bracket 31. The upper end of the inner cylinder 3 is provided with a feed inlet 32 ​​corresponding to the feed port, and the lower end of the inner cylinder 3 is provided with a discharge port 33. An extension cylinder is provided inside the outer cylinder 1 at the feed port. The lower end of the extension cylinder is close to the feed port 32, which allows the tea leaves falling from the feed port to accurately enter the inner cylinder 3 through the feed port 32.

[0039] The inner cylinder 3 is inclined at its lower end, and the outlet 33 is located in the middle of the lower end of the inner cylinder 3, so that the tea leaves falling at the bottom of the inner cylinder 3 can slide through the inclined bottom to the outlet 33 and flow out from the outlet 33.

[0040] The inner cylinder 3 has several air vents 35 at its upper end. These air vents 35 can promptly expel moisture and humidity from the tea leaves inside the inner cylinder 3, preventing moisture from accumulating inside the inner cylinder 3 and affecting the drying effect and tea quality. At the same time, ventilation can also ensure that heat is evenly distributed, guaranteeing that the tea leaves are dried evenly.

[0041] refer to Figure 6 and Figure 7 As shown, a rotating hole 34 is provided at the center of the upper side of the inner cylinder 3. A rotating shaft 41 is rotatably connected inside the rotating hole 34. A limiting groove 411 is provided on the rotating shaft 41. The limiting groove 411 is engaged with the upper side of the inner cylinder 3, thereby ensuring that the rotating shaft 41 rotates on the upper side of the inner cylinder 3 while preventing the rotating shaft 41 from moving up and down. The upper end of the rotating shaft 41 passes through the upper end of the outer cylinder 1 to the outside and is equipped with a conical gear 412. A bevel gear 211 is provided on the transmission shaft 21. The bevel gear 211 meshes with the bevel gear 412. Multiple material support plates 42 are provided inside the inner cylinder 3. The multiple material support plates 42 are vertically arranged and fixed on the rotating shaft 41. The upper part is provided with multiple evenly arranged fan-shaped blades 421, and the spacing between the multiple fan-shaped blades 421 is fan-shaped. The vertical projection of the fan-shaped blades 421 can cover the vertical projection of the spacing between two fan-shaped blades 421. The vertical projections of the fan-shaped blades 421 on the multiple material support plates 42 are staggered, so that the vertical projection of one side of the upper fan-shaped blade 421 is located on the lower fan-shaped blade 421. The drive mechanism 2 drives the transmission shaft 21 to rotate. The transmission shaft 21 drives the rotating shaft 41 to rotate through the bevel gear 211 and the bevel gear disk 412. The rotating shaft 41 drives the fan-shaped blades 421 to rotate around the rotating shaft 41.

[0042] It should be noted that one side of the fan-shaped blade 421 is the side opposite to the side of the rotation direction of the fan-shaped blade 421.

[0043] In a further explanation of this embodiment, the drive mechanism 2 can simultaneously control the rotation speed of the rotating shaft 41 and the conveying plate 131, so that the number of tea leaves falling is matched with the rotation speed of the fan-shaped leaf 421, and the number of tea leaves on each fan-shaped leaf 421 is appropriate.

[0044] It should be noted that when the feeding cylinder 13 is in the open state, the fan-shaped blades 421 are located below the feed inlet 32. When the feeding cylinder 13 is in the closed state, the gap between the two fan-shaped blades 421 is located below the feed inlet 32, so that the tea leaves falling each time can be caught by the uppermost fan-shaped blades 421.

[0045] refer to Figure 6 and Figure 7 As shown, multiple sweeping components 5 are installed inside the inner cylinder 3 and are located above multiple material support plates 42. Each sweeping component 5 includes two brush rods 51 and a fixing ring 52. The fixing ring 52 is sleeved on the rotating shaft 41. The outer side of the fixing ring 52 is fixedly connected to one end of the two brush rods 51, and the other end of the brush rods 51 is fixedly connected to the inner side of the inner cylinder 3. The brush rods 51 can sweep away or partially sweep away the tea leaves on the fan-shaped leaf 421 and send them to the lower fan-shaped leaf 421.

[0046] One brush rod 51 has a long-bristled brush 511 on the side facing the fan-shaped blade 421, and the other brush rod 51 has a short-bristled brush 512 on the side facing the fan-shaped blade 421. The bottom end of the long-bristled brush 511 is in contact with the upper side of the fan-shaped blade 421, and the bottom end of the short-bristled brush 512 is higher than the upper side of the fan-shaped blade 421. The included angle between the two brush rods 51 is greater than or equal to 30° and less than 180°, preferably 40°. Taking the direction of rotation of the fan-shaped blade 421 as an example, the brush rod 51 with the short-bristled brush 512 is located in front of the brush rod 51 with the long-bristled brush 511, so that the fan-shaped blade 421 first passes the short-bristled brush 512. 12. After a period of time, the tea leaves are spread evenly on the fan-shaped leaf 421 by the long-bristled brush 511 and the short-bristled brush 512, forming a certain thickness. Excess tea leaves are moved to the lower fan-shaped leaf 421. The tea leaves that have been spread evenly on the fan-shaped leaf 421 by the long-bristled brush 511 and dried for a certain period of time are swept to the lower fan-shaped leaf 421, and then spread evenly by the short-bristled brush 512. Thus, through multiple spreading, drying and sweeping processes, the tea leaves can be dried evenly, increasing the drying rate, improving production efficiency, and forming a production line, which greatly improves production efficiency.

[0047] It should be noted that the vertical projection of the feed inlet 32 ​​is located at the midpoint of the acute angle between the two uppermost brush rods 51, and the vertical projection of the uppermost brush rod 51 with long bristles 511 is located at the midpoint of the acute angle between the two lowermost brush rods 51.

[0048] It should be noted that the vertical projection of the brush handle 51 of the upper long-bristled brush 511 and the vertical projection of the brush handle 51 of the lower short-bristled brush 512 are 5°-15°, preferably 10°. This allows the lower short-bristled brush 512 to sweep the tea leaves on the lower fan-shaped leaf 421 after the long-bristled brush 511 has swept them all away. The angle between them allows the tea leaves to have some space to pile up. After all the tea leaves on the upper layer have fallen, the short-bristled brush 512 can sweep them flat in time.

[0049] refer to Figure 4 and Figure 6 As shown, the discharge port 12 is located on the bottom side of the outer cylinder 1. The bottom of the outer cylinder 1 is provided with an inclined plate 15. The lower end of the inclined plate 15 is located on the side of the discharge port 12. The discharge port 33 at the lower end of the inner cylinder 3 is located above the inclined plate 15. The tea leaves falling through the discharge port 33 fall directly onto the inclined plate 15, and then slide down the inclined plate 15 to the discharge port 12, flowing out of the outer cylinder 1 from the discharge port 12.

[0050] A further extension of this embodiment is to install a conveyor belt below the feed inlet 12 so that the falling tea leaves can be transported evenly.

[0051] refer to Figure 1 and Figure 2 As shown, the outer cylinder 1 has an air inlet 16 for connecting to the external heat medium and an air outlet 17 for discharging the heat medium inside the outer cylinder 1 on opposite sides. The air inlet 16 is located near the lower end of the outer cylinder 1, and the air outlet 17 is located near the upper end of the outer cylinder 1. Hot air is less dense than cold air and will naturally flow upward. The air inlet 16 is located at the bottom, which is conducive to the hot air mixing fully with the air inside the outer cylinder 1 during the rising process, heating the space inside the outer cylinder 1 more evenly, and avoiding heat concentration in the upper part of the outer cylinder 1. The air outlet 17 is located at the top, which can discharge moisture in time and ensure the quality of tea drying.

[0052] The working principle of this utility model is as follows:

[0053] Start the drive mechanism 2, which drives the transmission shaft 21 to rotate. The transmission shaft 21 drives the conveyor plate 131 to rotate, and at the same time, it drives the rotating shaft 41 to rotate through the bevel gear 211 and the bevel gear disk 412.

[0054] The conveyor plate 131 rotates, causing the tea leaves to fall from the feed inlet and enter the inner cylinder 3 through the feed inlet 32, falling onto the fan-shaped leaf plate 421 on the first or second layer.

[0055] The rotating shaft 41 rotates, causing the fan-shaped tea leaves 421 to rotate, so that the falling tea leaves can be laid flat on the first layer of fan-shaped tea leaves 421.

[0056] The fan-shaped leaf 421 rotates while the brush rod 51 remains fixed. When the fan-shaped leaf 421 rotates to the brush rod 51 equipped with a short brush 512, the short brush 512 sweeps the tea leaves on the fan-shaped leaf 421 flat and sweeps the excess onto the lower fan-shaped leaf 421. The tea leaves on the fan-shaped leaf 421 are then continuously roasted. When the fan-shaped leaf 421 rotates to the brush rod 51 equipped with a long brush 511, the long brush 511 sweeps away all the tea leaves on the fan-shaped leaf 421, which then fall onto the lower fan-shaped leaf 421.

[0057] Through the above process, the tea leaves are evenly dried by spreading, baking, and sweeping and breaking them up in each layer, thus improving the quality of the tea.

[0058] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A tea drying device, characterized in that, include: The outer cylinder (1) has a discharge port (11) at its upper end and a discharge port (12) at its lower end. A discharge cylinder (13) is provided on the discharge port (11), and a conveying plate (131) is rotatably connected inside the discharge cylinder (13). A drive mechanism (2) is installed on the upper end of the outer cylinder (1), and the drive mechanism (2) is connected to the input end of the conveyor plate (131) through a transmission assembly; The inner cylinder (3) is installed inside the outer cylinder (1) by a fixing frame (31). The upper end of the inner cylinder (3) is provided with a feed inlet (32) corresponding to the feed inlet, and the lower end of the inner cylinder (3) is provided with a discharge outlet (33). The material support mechanism (4) is rotatably connected inside the inner cylinder (3). The input end of the material support mechanism (4) passes through the inner cylinder (3) and the outer cylinder (1) and is connected to the transmission assembly for transmission. A sweeping mechanism is fixedly installed inside the inner cylinder (3) and is used to sweep and remove materials on the material support mechanism (4).

2. The tea drying device according to claim 1, characterized in that: The transmission component is a transmission shaft (21). The transmission shaft (21) is mounted on the upper end of the outer cylinder (1) via a mounting base (14). The transmission shaft (21) is rotatably connected to the mounting base (14). One end of the transmission shaft (21) is fixedly connected to the output end of the drive mechanism (2), and the other end of the transmission shaft (21) is fixedly connected to the input end of the conveyor plate (131).

3. The tea drying device according to claim 2, characterized in that: The material support mechanism (4) includes a rotating shaft (41) and multiple material support plates (42). The upper center of the inner cylinder (3) is provided with a rotating hole (34). The rotating shaft (41) is rotatably connected in the rotating hole (34). The rotating shaft (41) is provided with a limiting groove (411). The limiting groove (411) is engaged with the upper side of the inner cylinder (3). The upper end of the rotating shaft (41) passes through the upper end of the outer cylinder (1) to the outside and is equipped with a conical gear disc (412). The transmission shaft (21) is provided with a conical gear (211). The conical gear (211) meshes with the conical gear disc (412). Multiple material support plates (42) are located in the inner cylinder (3) and are vertically arranged and fixed on the rotating shaft (41).

4. The tea drying device according to claim 3, characterized in that: The material support plate (42) is provided with a plurality of evenly arranged fan-shaped blades (421), the distance between the plurality of fan-shaped blades (421) is fan-shaped, and the vertical projections of the fan-shaped blades (421) of the plurality of material support plates (42) are staggered, so that the vertical projection of one side of the upper fan-shaped blade (421) is located on the lower fan-shaped blade (421).

5. The tea drying apparatus according to claim 4, characterized in that: The sweeping mechanism includes multiple sweeping components (5), which are all located inside the inner cylinder (3) and above multiple material support plates (42). Each sweeping component (5) includes two brush rods (51) and a fixing ring (52). The fixing ring (52) is sleeved on the rotating shaft (41). The outer side of the fixing ring (52) is fixedly connected to one end of the two brush rods (51). The connecting ends of the two brush rods (51) and the fixing ring (52) are fixedly connected to the inner side of the inner cylinder (3).

6. The tea drying apparatus according to claim 5, characterized in that: One of the brush rods (51) is provided with a long brush (511) on the side facing the fan-shaped blade (421), and the other brush rod (51) is provided with a short brush (512) on the side facing the fan-shaped blade (421).

7. A tea drying apparatus according to claim 6, characterized in that: The bottom end of the long-bristled brush (511) is in contact with the upper side of the fan-shaped blade (421), and the bottom end of the short-bristled brush (512) is higher than the upper side of the fan-shaped blade (421).

8. A tea drying apparatus according to claim 1, characterized in that: The discharge port (12) is located on the bottom side of the outer cylinder (1). The bottom of the outer cylinder (1) is provided with an inclined plate (15). The lower end of the inclined plate (15) is located on the side of the discharge port (12). The discharge port (33) at the lower end of the inner cylinder (3) is located above the inclined plate (15).

9. A tea drying device according to claim 1, characterized in that: The outer cylinder (1) is provided with an air inlet (16) for connecting the external heat medium and an air outlet (17) for discharging the heat medium inside the outer cylinder (1) on opposite sides. The air inlet (16) is located near the lower end of the outer cylinder (1), and the air outlet (17) is located near the upper end of the outer cylinder (1).

10. A tea drying apparatus according to claim 1, characterized in that: The inner cylinder (3) is provided with several air outlets (35) at its upper end.

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