Tea leaf roasting machine
The tea drying machine, designed with a motor-driven helical gear system and spiral blades, solves the problems of tea clogging and poor frying effect in tea drying machines, achieving efficient frying and sorting discharge, and improving the efficiency and output of tea frying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI XINQUAN AGRICULTURAL DEVELOPMENT CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-06-26
AI Technical Summary
Existing tea drying machines suffer from problems such as tea clogging of filter holes, low efficiency, low output, and poor stirring effect during the drying process.
The filter cylinder is rotated by a helical gear system driven by an electric motor. Combined with the design of spiral blades and deflectors, the tea leaves are turned and conveyed horizontally. The tea leaves are heated by a heating device. Tea fragments are discharged from the first outlet, and the finished tea leaves are discharged separately from the second outlet.
It improves the efficiency and yield of tea drying, achieves effective tea classification and stirring, avoids piling up, and enhances overall drying efficiency.
Smart Images

Figure CN224415584U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tea drying technology, and in particular to a tea drying machine. Background Technology
[0002] The utility model disclosed in CN218245485U provides a tea drying machine, including an insulated tank with a stirring component inside. An installation port is located at the bottom of the insulated tank, and a sieving component is installed inside the port. A servo motor is fixedly connected to one end of the insulated tank, and the output shaft of the servo motor is fixedly connected to the stirring component. Multiple heating devices are installed on the inner wall of the insulated tank to heat the inside. The servo motor drives the stirring component to stir the tea leaves. During the drying process, the tea leaves continuously shrink until they fall through the filter holes of the filter screen onto the surface of the filter plate. A vibration motor, in conjunction with a damping shock absorber, allows the tea powder to pass through the filter holes of the filter plate and be discharged through the waste outlet. The dried tea leaves, after being vibrated by the filter plate, move to the opening of the discharge pipe and are discharged. This discharge method not only avoids clogging the discharge outlet but also sieves the dried tea leaves, improving the efficiency of tea drying.
[0003] After searching, it was found that the existing technology has certain defects. Since the tea leaves need to be dried to the size of the filter screen, a small amount of tea leaves may affect the subsequent tea drying operations. The waiting time is long, the drying efficiency is low and the output is small. In addition, the tea leaves are not well turned and are easy to clump together during the drying process. Therefore, a tea drying machine is needed to meet people's needs. Utility Model Content
[0004] The purpose of this invention is to provide a tea drying machine to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a tea drying machine, comprising a housing, a filter cylinder, and a heating device. The heating device is disposed on the upper inner wall of the housing. One end of the housing is open, and the other end is closed. A motor is disposed thereon. A first helical gear is disposed on the output shaft of the motor. A second helical gear meshes with one side of the first helical gear. A rotating shaft is disposed on the second helical gear and is rotatably connected to the filter cylinder. A baffle is disposed on one side of the filter cylinder. A third helical gear meshes with the other side of the first helical gear. One end of the third helical gear is connected to a tube. One end of the tube is connected to a turntable. A plurality of connecting posts are disposed on the turntable and are connected to one end of the filter cylinder. Spiral blades are disposed on the inner wall of the filter cylinder. A first discharge port is provided at the bottom of the housing below the filter cylinder, and a second discharge port is provided below the connecting posts of the housing.
[0006] Preferably, a limiting seat is provided on one closed end of the device housing. The limiting seat is L-shaped, with one side branch arranged on the meshing surface opposite to the first helical gear and the other side branch arranged on the meshing surface opposite to the second helical gear.
[0007] Preferably, the rotating shaft is rotatably connected within the center of the third helical gear, the tube body, and the turntable, and the tube body is rotatably connected within the closed end of the device housing.
[0008] Preferably, the device housing is provided with a positioning guide rail, and the outer wall of the filter cylinder is provided with a plurality of positioning wheels, all of which are rotatably fitted into the positioning guide rail.
[0009] Preferably, a support rod is provided on one end of the opening of the device housing, and one end of the rotating shaft is rotatably connected inside the support rod.
[0010] Preferably, the side of the second discharge port is inclined, gradually tilting away from the direction of the first discharge port from top to bottom.
[0011] The beneficial effects of this utility model are:
[0012] In this invention, a motor drives a first helical gear to rotate, which meshes with a third helical gear. Through the connection of the tube, turntable, and connecting column, the filter cylinder rotates within the outer casing of the device. The spiral blades allow the tea leaves inside the filter cylinder to be turned and stir-fried, while also achieving horizontal conveying. Combined with the heating effect of the heating device, the tea leaves are moved and dried, effectively improving the drying efficiency and yield. Furthermore, tea fragments fall through the holes into the first discharge port during the rotation of the filter cylinder, and the dried tea leaves fall through the gap in the connecting column into the second discharge port, achieving effective sorting.
[0013] In this invention, a motor drives a first helical gear to rotate, which meshes with a second helical gear, causing the rotating shaft to drive a deflector plate to rotate inside the filter cylinder. This deflector plate rotates in the opposite direction to the filter cylinder. Combined with the gravity-driven frying of the tea leaves by the spiral blades, the rotation of the deflector plate effectively breaks up clumps of tea leaves that accumulate during the frying process, further improving the efficiency of drying the tea leaves. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the left side of a tea drying machine proposed in this utility model;
[0015] Figure 2 This is a right-side structural schematic diagram of a tea drying machine proposed in this utility model;
[0016] Figure 3 This is a front cross-sectional view of a tea drying machine proposed in this utility model.
[0017] Figure 4 This is a top cross-sectional view of a tea drying machine proposed in this utility model.
[0018] Figure 5 This is a side view cross-sectional structural diagram of a tea drying machine proposed in this utility model.
[0019] In the diagram: 1. Device housing; 2. Filter cylinder; 3. Heating device; 4. Motor; 5. First helical gear; 6. Second helical gear; 7. Rotating shaft; 8. Paddle plate; 9. Third helical gear; 10. Tube body; 11. Turntable; 12. Connecting column; 13. Spiral blade; 14. First discharge port; 15. Second discharge port; 16. Limiting seat; 17. Positioning guide rail; 18. Positioning wheel; 19. Support rod. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figure 1-5 A tea drying machine includes a housing 1, a filter cylinder 2, and a heating device 3. The heating device 3 is located on the inner wall of the upper half of the housing 1. One end of the housing 1 is open, and the other end is closed. A motor 4 is installed on the output shaft of the motor 4. A first helical gear 5 is installed on the output shaft of the motor 4. A second helical gear 6 meshes with one side of the first helical gear 5. A rotating shaft 7 is installed on the second helical gear 6. The rotating shaft 7 is rotatably connected to the filter cylinder 2. A baffle plate 8 is installed on one side of the filter cylinder 2. A third helical gear 9 meshes with the other side of the first helical gear 5. One end of the third helical gear 9 is connected to a tube 10. One end of the tube 10 is connected to a turntable 11. A plurality of connecting posts 12 are installed on the turntable 11. The plurality of connecting posts 12 are connected to one end of the filter cylinder 2. Spiral blades 13 are installed on the inner wall of the filter cylinder 2. A first discharge port 14 is opened at the bottom end of the housing 1 below the filter cylinder 2. A second discharge port 15 is opened below the connecting posts 12 of the housing 1.
[0022] The tea leaves to be dried are placed into the opening of the outer casing 1 of the device. The motor 4 drives the first helical gear 5 to rotate, which meshes with the third helical gear 9. Through the connection of the tube 10, turntable 11, and connecting column 12, the filter cylinder 2 rotates inside the outer casing 1. The spiral blades 13 ensure the tea leaves inside the filter cylinder 2 are turned and stir-fried, while also achieving horizontal conveying. Combined with the heating effect of the heating device 3, the tea leaves are moved and dried, effectively improving the drying efficiency and yield. Furthermore, tea dust is contained within the rotating filter cylinder 2. During the process, the tea leaves fall through the holes to the first discharge port 14 and are discharged. The dried tea leaves fall through the gap of the connecting column 12 to the second discharge port 15 and are discharged, achieving effective classification. The motor 4 drives the first helical gear 5 to rotate. The first helical gear 5 meshes with the second helical gear 6, causing the rotating shaft 7 to drive the deflector plate 8 to rotate inside the filter cylinder 2 and produce a rotation effect opposite to that of the filter cylinder 2. Combined with the gravity-driven falling and frying of the tea leaves by the spiral blades 13, the rotation of the deflector plate 8 effectively breaks up the clumps of tea leaves that accumulate during the falling process, further improving the tea drying efficiency.
[0023] Specifically, in this embodiment, a limiting seat 16 is provided on one closed end of the device housing 1. The limiting seat 16 is L-shaped, with one side branch arranged on the meshing surface away from the first helical gear 5 and the other side branch arranged on the meshing surface away from the second helical gear 6, to prevent disengagement between multiple helical gears and ensure meshing effect.
[0024] Specifically, in this embodiment, the rotating shaft 7 is rotatably connected to the center of the third helical gear 9, the tube 10 and the turntable 11, and the tube 10 is rotatably connected to one closed end of the device housing 1, providing positioning effect to each other and improving the overall integrity.
[0025] Specifically, in this embodiment, a positioning guide rail 17 is provided inside the outer casing 1 of the device, and a plurality of positioning wheels 18 are provided on the outer wall of the filter cylinder 2. The plurality of positioning wheels 18 are rotatably fitted into the positioning guide rail 17 to prevent the filter cylinder 2 from swaying and to ensure stable rotation.
[0026] Specifically, in this embodiment, a support rod 19 is provided on one end of the opening of the device housing 1, and one end of the rotating shaft 7 is rotatably connected to the support rod 19 to provide support for the end of the rotating shaft 7 and help the rotating shaft 7 maintain concentric rotation.
[0027] Specifically, in this embodiment, the side of the second discharge port 15 is inclined, gradually moving away from the first discharge port 14 from top to bottom, so that the bottom of the second discharge port 15 is far away from the first discharge port 14, preventing tea leaves from mixing with the dried finished tea.
[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A tea drying machine, comprising a housing (1), a filter cylinder (2), and a heating device (3), characterized in that: The heating device (3) is installed on the upper inner wall of the outer shell (1). One end of the outer shell (1) is open and the other end is closed. A motor (4) is installed thereon. A first helical gear (5) is installed on the output shaft of the motor (4). A second helical gear (6) meshes with one side of the first helical gear (5). A rotating shaft (7) is installed on the second helical gear (6). The rotating shaft (7) is rotatably connected inside the filter cylinder (2). A deflector (8) is installed on one side of the outer wall. A third helical gear meshes with the other side of the first helical gear (5). One end of the wheel (9) and the third helical gear (9) is connected to the tube body (10), and one end of the tube body (10) is connected to the turntable (11). Several connecting posts (12) are provided on the turntable (11), and several connecting posts (12) are connected to one end of the filter cylinder (2). Spiral blades (13) are provided on the inner wall of the filter cylinder (2). The device housing (1) is provided with a first discharge port (14) at the bottom end below the filter cylinder (2), and a second discharge port (15) is provided below the connecting posts (12).
2. The tea drying machine according to claim 1, characterized in that: A limiting seat (16) is provided on one closed end of the device housing (1). The limiting seat (16) is L-shaped, with one side branch arranged on the meshing surface away from the first helical gear (5) and the other side branch arranged on the meshing surface away from the second helical gear (6).
3. The tea drying machine according to claim 1, characterized in that: The rotating shaft (7) is rotatably connected to the center of the third helical gear (9), the tube (10) and the turntable (11), and the tube (10) is rotatably connected to one closed end of the device housing (1).
4. The tea drying machine according to claim 1, characterized in that: The device housing (1) is provided with a positioning guide rail (17), and the outer wall of the filter cylinder (2) is provided with a number of positioning wheels (18), which are all rotated and fitted into the positioning guide rail (17).
5. A tea drying machine according to claim 1, characterized in that: A support rod (19) is provided on one end of the opening of the outer shell (1) of the device, and one end of the rotating shaft (7) is rotatably connected inside the support rod (19).
6. The tea drying machine according to claim 1, characterized in that: The side of the second discharge port (15) is inclined, gradually moving away from the first discharge port (14) from top to bottom.