Tea grading and frying machine
By introducing structures such as vertical rods, connecting components, and guide blocks into the tea grading and frying machine, the problem of insufficient positional change during the tea frying process is solved, achieving uniform frying and grading of tea, and improving the frying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XISHUANGBANNA HAIRONG TEA CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-14
AI Technical Summary
Existing tea grading and turning machines have low tea leaf position changes during the turning process, resulting in poor turning effect and uneven sieving.
A tea grading and turning machine was designed, which uses components such as vertical rods, connecting components, screens, ring covers, ring heating rods, support rings and guide blocks. The rotation of the vertical rods drives the screens to rotate synchronously, and the cooperation of the guide blocks and guide rods makes the screens move up and down intermittently, so as to realize the turning and sieving of tea leaves.
This process enables uniform stir-frying and grading of tea leaves, improving the stir-frying effect and ensuring that tea leaves of different sizes are processed separately.
Smart Images
Figure CN224482874U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tea processing technology, specifically to a tea grading and stir-frying machine. Background Technology
[0002] Stir-frying tea leaves is a core operation in tea processing, following the initial withering, rolling, drying, or pan-frying stages. High temperatures disrupt the tea's cell structure, evaporate moisture, and stimulate aroma compounds, directly affecting the tea's color, taste, and aroma. Currently, to ensure different sizes of tea leaves are processed separately during stir-frying, sieves are used to separate the leaves. For example, patent document CN211020817U discloses a tea grading and stir-frying machine. This machine grades the tea leaves according to their desired degree of roasting, using primary, secondary, and tertiary sieves to process tea leaves of different sizes. By providing different amounts of heat to the sieves made of heating plates and using stirring teeth on each sieve, uneven heating of the leaves during stir-frying is prevented.
[0003] However, when the aforementioned stir-frying machine is in operation, the tea leaves pile up on the surface of the screen. Even if it rotates laterally with the screen, the tea leaves cannot be turned over to complete the stir-frying and sieving, resulting in poor stir-frying effect. Utility Model Content
[0004] In view of the problems existing in the current tea grading and stir-frying machine, this utility model is proposed.
[0005] Therefore, the purpose of this utility model is to provide a tea grading and turning machine, which solves the problem that the tea leaves do not change position much during the turning process and cannot be effectively turned and sieved.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A tea grading and stir-frying machine includes a stir-frying drum. A reciprocating motor is fixedly installed at the bottom of the stir-frying drum. The output shaft of the reciprocating motor passes through the stir-frying drum and is fixedly installed on a vertical rod. The vertical rod has multiple connecting components on its wall and a screen is fixedly fitted on it through the connecting components. The screens have different inner diameters of the screen holes. An annular cover is fixedly installed on the outer wall of the screen. An annular heating rod is installed inside the annular cover and contacts and cooperates with the side wall of the screen.
[0008] The bottom of the annular cover is fixedly provided with a guide rod, the inner wall of the stir-frying cylinder is fixedly provided with a plurality of spaced support rings, and the top of the support rings is fixedly provided with a plurality of spaced guide blocks. The guide rod and the guide blocks are configured to cooperate with each other.
[0009] Preferably, the connecting assembly includes a slide tube, which is slidably sleeved on the outside of the vertical rod. A limiting groove is formed in the wall of the slide tube, and a limiting plate is slidably inserted in the limiting groove. The limiting plate is fixedly connected to the vertical rod, and a spring is fixedly provided between the limiting plate and the inner wall of the limiting groove.
[0010] Preferably, the stir-frying cylinder has a material inlet in the middle of its side wall, and the outer wall of the material inlet is covered with a cover plate, which is screwed to the stir-frying cylinder.
[0011] Preferably, a guide cover is fixedly provided at the bottom of the inner wall of the stir-frying cylinder, the guide cover is rotatably sleeved on the outside of the vertical rod, the lower end of the inner wall of the stir-frying cylinder is tapered, and multiple discharge pipes are fixedly provided at the bottom of the stir-frying cylinder. The pipe opening of the discharge pipe is fitted with a pipe cap, and the pipe cap is screwed to the discharge pipe.
[0012] Furthermore, both the vertical rod and the slide tube have rectangular cross-sections.
[0013] Preferably, the plurality of guide blocks are all arranged in a cam shape, and the bottom of the guide rod is rounded.
[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0015] 1. This utility model, through the provision of a vertical rod, connecting component, screen, annular cover, annular heating rod, support ring, guide block and guide rod, enables the tea leaves on the screen surface to vibrate intermittently by moving up and down elastically as the screen rotates, so that the tea leaves on the screen surface can be turned over and screened at the same time, which not only ensures the stir-frying effect, but also allows for the grading and stir-frying of tea leaves. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of part A.
[0019] Figure 3 This is a schematic diagram of the connection structure between the vertical rod and the sliding tube of this utility model.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Stirring drum; 2. Reciprocating motor; 3. Vertical rod; 4. Screen; 5. Annular cover; 6. Annular heating rod; 7. Guide rod; 8. Support ring; 9. Guide block; 10. Sliding tube; 11. Limiting plate; 12. Spring; 13. Cover plate; 14. Guide cover; 15. Discharge pipe; 16. Pipe cap. Detailed Implementation
[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0023] This utility model discloses a tea grading and stir-frying machine.
[0024] This utility model provides, for example Figure 1-3 The tea grading and stir-frying machine shown includes a stir-frying drum 1. A reciprocating motor 2 is fixedly installed at the bottom of the stir-frying drum 1. The output shaft of the reciprocating motor 2 passes through the stir-frying drum 1 and is fixedly installed on a vertical rod 3. The wall of the vertical rod 3 is provided with multiple connecting components, and a screen 4 is fixedly sleeved on the vertical rod 3 through the connecting components. The connecting components include a sliding tube 10, which is slidably sleeved on the outside of the vertical rod 3. The cross-sections of the vertical rod 3 and the sliding tube 10 are both rectangular. A limiting groove is opened in the wall of the sliding tube 10. A limiting plate 11 is slidably inserted in the limiting groove. The limiting plate 11 is fixedly connected to the vertical rod 3. A spring 12 is fixedly installed between the limiting plate 11 and the inner wall of the limiting groove. The screens 4 have different inner diameters of the screen holes. An annular cover 5 is fixedly installed on the outer wall of the screen 4. An annular heating rod 6 is installed inside the annular cover 5. The annular heating rod 6 contacts and cooperates with the side wall of the screen 4.
[0025] The bottom of the annular cover 5 is fixedly provided with a guide rod 7, and the inner wall of the stir-frying cylinder 1 is fixedly provided with multiple spaced support rings 8. The top of the support rings 8 is fixedly provided with multiple spaced guide blocks 9. The guide rod 7 and the guide blocks 9 are configured to cooperate with each other. The multiple guide blocks 9 are all cam-shaped. The bottom of the guide rod 7 is rounded.
[0026] In order to ensure that the tea leaves can be effectively removed after stir-frying, such as Figure 1 As shown, a material inlet is provided in the middle of the side wall of the stir-frying cylinder 1. A cover plate 13 is provided on the outer wall of the material inlet. The cover plate 13 is screwed to the stir-frying cylinder 1. A guide cover 14 is fixedly provided at the bottom of the inner wall of the stir-frying cylinder 1. The guide cover 14 is rotatably sleeved on the outside of the vertical rod 3. The lower end of the inner wall of the stir-frying cylinder 1 is tapered. Multiple discharge pipes 15 are fixedly provided at the bottom of the stir-frying cylinder 1. A pipe cap 16 is sleeved on the opening of the discharge pipe 15. The pipe cap 16 is screwed to the discharge pipe 15.
[0027] Working principle: The tea leaves to be processed are placed into the screen 4 inside the frying drum 1 through the feeding port, the cover plate 13 is closed, the reciprocating motor 2 and the annular electric heating rod 6 are started. The reciprocating motor 2 drives the vertical rod 3 to rotate. Since the vertical rod 3 and the slide tube 10 are both rectangular in cross-section, when the vertical rod 3 rotates, it drives the screen 4 to rotate synchronously through the slide tube 10. The annular electric heating rod 6 heats the screen 4, thereby realizing the frying and heating of the tea leaves.
[0028] When the sieve 4 rotates, the guide rod 7 at the bottom of the annular cover 5 on its outer wall rotates together with the sieve 4. When the guide rod 7 rotates to contact the cam-shaped guide block 9 at the top of the support ring 8, the guide block 9 will generate an upward pushing force on the guide rod 7, causing the guide rod 7 to drive the annular cover 5 and the sieve 4 to move upward. The sieve 4 slides upward along the vertical rod 3 through the slide tube 10. At this time, the limiting plate 11 in the limiting groove of the slide tube 10 moves relative to the inner wall of the limiting groove, and the spring 12 is squeezed. When the guide rod 7 rotates to separate from the guide block 9, the elastic force of the spring 12 pushes the slide tube 10 to drive the sieve 4 to move downward. During this process, the elastic force of the spring 12 will cause the sieve 4 to vibrate continuously. Under the combined action of rotation, up and down movement and vibration, the tea leaves on the surface of the sieve 4 will turn over, achieving uniform stir-frying.
[0029] Meanwhile, during the vibration process, smaller tea leaves will fall through the sieve holes of the screen 4 and onto the lower screen 4 with smaller inner diameter, thus grading the tea leaves. The tea leaves sieved by the bottom screen 4 will fall into the conical area at the lower end of the inner wall of the frying drum 1, and be guided to the discharge pipe 15 by the guide cover 14. The graded and frying tea leaves can be collected by opening the pipe cap 16.
[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A tea grading and stir-frying machine, comprising a stir-frying drum (1), characterized in that, A reciprocating motor (2) is fixedly installed at the bottom of the stir-frying cylinder (1). The output shaft of the reciprocating motor (2) passes through the stir-frying cylinder (1) and is fixedly installed with a vertical rod (3). The rod wall of the vertical rod (3) is provided with multiple connecting components, and a screen (4) is fixedly fitted through the connecting components. The screens (4) have different inner diameters of the screen holes. An annular cover (5) is fixedly installed on the outer wall of the screen (4). An annular heating rod (6) is provided inside the annular cover (5). The annular heating rod (6) is in contact with the side wall of the screen (4). The bottom of the annular cover (5) is fixedly provided with a guide rod (7), the inner wall of the stir-frying cylinder (1) is fixedly provided with a plurality of spaced support rings (8), the top of the support rings (8) is fixedly provided with a plurality of spaced guide blocks (9), and the guide rod (7) and the guide blocks (9) are configured to cooperate.
2. The tea grading and turning machine according to claim 1, characterized in that, The connecting assembly includes a slide tube (10), which is slidably sleeved on the outside of the vertical rod (3). A limiting groove is opened in the wall of the slide tube (10), and a limiting plate (11) is slidably inserted in the limiting groove. The limiting plate (11) is fixedly connected to the vertical rod (3), and a spring (12) is fixedly provided between the limiting plate (11) and the inner wall of the limiting groove.
3. The tea grading and turning machine according to claim 1, characterized in that, The stir-frying cylinder (1) has a material inlet in the middle of its side wall, and a cover plate (13) is provided on the outer wall of the material inlet. The cover plate (13) is screwed to the stir-frying cylinder (1).
4. The tea grading and turning machine according to claim 1, characterized in that, The bottom of the inner wall of the stir-frying cylinder (1) is fixedly provided with a guide cover (14), which is rotatably sleeved on the outside of the vertical rod (3). The lower end of the inner wall of the stir-frying cylinder (1) is tapered. Multiple discharge pipes (15) are fixedly passed through the bottom of the stir-frying cylinder (1). The opening of the discharge pipe (15) is fitted with a pipe cap (16), and the pipe cap (16) is screwed to the discharge pipe (15).
5. The tea grading and turning machine according to claim 1, characterized in that, The cross-sections of the vertical rod (3) and the sliding tube (10) are both rectangular.
6. The tea grading and turning machine according to claim 1, characterized in that, The multiple guide blocks (9) are all arranged in a cam shape, and the bottom of the guide rod (7) is rounded.