Tea screening machine
By designing a tea screening machine with rotating screening cylinder and inner wall mixing ribs, combined with an inclined baffle and exhaust fan, the problem of damaged shape and color during tea screening is solved, and efficient and non-destructive tea screening and impurity separation are achieved.
Patent Information
- Application Number
- CN202422452847.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-10
AI Technical Summary
Existing tea screening methods can easily lead to damage to the shape and color of the tea, affecting the quality of the tea.
The rotatably connected screening cylinder and inner wall stirring rib design are adopted, combined with the inclined baffle and exhaust fan to achieve full rolling of tea leaves and impurities separation, avoid active stirring damage, and at the same time, the screen plate and collection tank are used to improve collection efficiency.
Keep the shape and color of the tea leaves intact, improve the screening quality, ensure the purity of the tea leaves, and reduce the production of dust.
Smart Images
Figure CN223276706U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tea processing, in particular to a tea screening machine. Background Art
[0002] Tea, a widely consumed beverage, comes in many varieties, including green tea, black tea, oolong tea, and white tea. Each type of tea has its own unique flavor and production process. The quality of tea depends not only on its variety and growing environment, but also on the screening process during processing.
[0003] During the screening process of tea leaves, some screening methods mainly involve stirring and vibrating the tea leaves to actively drive them to tumble effectively and fully, thereby separating the impurities in the tea leaves. This method is highly efficient, but the tea leaves are easily mechanically damaged during the screening process, which affects the shape, color and taste of the tea leaves, and thus affects the quality of the tea leaves. Utility Model Content
[0004] In view of this, the utility model provides a tea screening machine, which can maintain the original shape and color of the tea leaves and prevent the tea leaves from being excessively damaged.
[0005] In order to solve the above technical problems, the utility model provides a tea screening machine, including a bracket and a screening assembly, a separation drum is fixedly connected to the middle part of the bracket, and a screening assembly is provided in the middle part of the separation drum. The screening assembly includes a screening drum rotatably connected to the middle part of the separation drum, and a plurality of sieve openings arranged in an array are provided on the outer wall of the screening drum. Pulleys are provided on one side of the bracket and one end of the screening drum. The two pulleys are connected by belt transmission. A motor is provided on the side of the bracket close to the pulley, and the output shaft of the motor is provided in the middle part of the adjacent pulley. A plurality of baffles are fixedly connected to the inner wall of the screening drum, and a plurality of stirring ribs distributed in a circular array around the central axis of the screening drum are fixedly connected to the inner wall of the screening drum. The stirring ribs are consistent with the axial direction of the screening drum, which is conducive to maintaining the original shape and color of the tea leaves and preventing the tea leaves from being excessively damaged.
[0006] The baffles are all tilted, which helps the tea leaves to tumble more fully during the screening process.
[0007] The screening component also includes a sieve plate fixedly connected to the bottom of the separation cylinder, and a plurality of holes distributed in an array are opened in the middle of the sieve plate; even if the tea debris falls out slowly, excessive dust is avoided.
[0008] The bottom of the separation cylinder is fixedly connected with a collecting trough corresponding to the upper and lower distribution of the sieve plate; that is, it is convenient to collect the screened tea leaves and improve the collection efficiency.
[0009] An exhaust fan is fixedly connected to the top center of the separation cylinder to absorb dust and fine impurities generated during the screening process of the tea leaves.
[0010] A protective cover is fixedly connected to the top of the exhaust fan to prevent external impurities from falling back into the separation cylinder.
[0011] The upper and lower ends of the screening cylinder are fixedly connected with scrapers, and the middle part of the scrapers is provided with multiple leaks, which further tumble the tea leaves and impurities, helping to separate fine impurities and dust.
[0012] In summary, compared with the prior art, this application has at least one of the following beneficial technical effects:
[0013] 1. The tea leaves are tumbled as a whole by the rotation of the screening cylinder, avoiding active stirring and tumbling, which is beneficial to maintaining the original shape and color and preventing the tea leaves from being excessively damaged.
[0014] 2. As the tea leaves are fully tumbled, the dust between the tea leaves is separated and lifted up. The airflow generated by the exhaust fan can help absorb some of the dust and fine impurities generated during the screening process and discharge them out of the separation cylinder, thus ensuring that the final collected tea leaves are purer. During this process, the tea leaves are always in the screening cylinder, effectively preventing the possibility of tea leaves being sucked away. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a structural diagram of a tea screening machine according to the present invention;
[0016] Figure 2 This is a schematic diagram of the structure inside the separation cylinder of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure inside the screening cylinder of the utility model;
[0018] Figure 4 This is an enlarged structural diagram of point A of the present invention.
[0019] Description of reference numerals:
[0020] 100, bracket; 101, separation cylinder; 102, collection tank;
[0021] 200, screening assembly; 201, screening cylinder; 202, baffle; 203, stirring rib; 204, screen plate;
[0022] 301, exhaust fan; 302, protective cover; 303, scraper; DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solutions and advantages of the embodiment of the present invention clearer, the following will be combined with the appended drawings of the embodiment of the present invention. Figure 1-4, clearly and completely describing the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of the present invention.
[0024] like Figure 1-4 As shown: This embodiment provides a tea screening machine, including a bracket 100 and a screening assembly 200, a separation drum 101 is fixedly connected to the middle of the bracket 100, and a screening assembly 200 is provided in the middle of the separation drum 101, and the screening assembly 200 includes a screening drum 201 rotatably connected to the middle of the separation drum 101, and a plurality of sieve openings arranged in an array are provided on the outer wall of the screening drum 201, a pulley is provided on one side of the bracket 100 and one end of the screening drum 201, and the two pulleys are connected by a belt drive, a motor is provided on the side of the bracket 100 close to the pulley, and the output shaft of the motor is provided in the middle of the adjacent pulley, a plurality of baffles 202 are fixedly connected to the inner wall of the screening drum 201, and a plurality of stirring ribs 203 distributed in a ring array around the central axis of the screening drum 201 are fixedly connected to the inner wall of the screening drum 201, and the stirring ribs 203 are consistent with the axial direction of the screening drum 201;
[0025] The tea leaves enter the screening drum 201 through one end and the motor is controlled to rotate, which drives the pulley to rotate, thereby rotating the screening drum 201. The rotation of the screening drum 201 causes the tea leaves to fully roll inside the screening drum 201 and collide with the stirring ribs 203 on the inner wall. The tea leaves are broken up in this process, which prevents the tea leaves from clumping together and effectively separates the tea leaves from impurities. The tea leaves are blocked by the baffle 202 in the screening drum 201 and gather together. As the baffle 202 moves, the tea leaves finally reach a high place and separate from the baffle 202, and fall down as a whole, and then fall down again. The tea leaves collide with the stirring ribs 203 and are broken up. In this process, the tea leaves are tumbled more fully by relying on gravity and the guidance of the inclined baffle 202. Finally, some smaller tea leaves and debris leave the screening cylinder 201 through the sieve opening and enter the separation cylinder 101 to achieve screening. In this way, the tea leaves are tumbled as a whole by the rotation of the screening cylinder 201, avoiding tumbling due to active stirring, which is conducive to maintaining the original shape and color and preventing the tea leaves from being excessively damaged. At the same time, the setting of the screening component 200 ensures that the tea leaves are fully tumbled and the screening quality is guaranteed.
[0026] Baffle 202 Figure 2 、 3 As shown,
[0027] The baffles 202 are all tilted, and the direction of the baffles 202 is consistent with that of the mixing drum;
[0028] As the tea leaves are lifted by baffle 202, they tumble on the inclined baffle 202, moving toward one end of the baffle 202 and ultimately falling through a corner of the baffle 202. This creates a more complex trajectory for the tea leaves within screening drum 201, helping to more thoroughly separate impurities from the tea leaves. The inclined baffle 202 ensures that the tea leaves are fully tumbled and mixed during both the ascent and descent, thereby improving screening efficiency.
[0029] Screen plate 204 Figure 3 、 4 As shown,
[0030] The screening assembly 200 further includes a screen plate 204 fixedly connected to the bottom of the separation cylinder 101. The middle portion of the screen plate 204 is provided with a plurality of holes distributed in an array. The density of the holes is less than the density of the screen openings.
[0031] When the tea debris sifted out of the screening cylinder 201 falls into the separation cylinder 101, it will not fall out of the separation cylinder 101 directly due to the small density of the holes, but will fall out slowly to avoid the debris from flying and generating excessive dust during the falling process.
[0032] The collecting tank 102 is as follows Figure 1 As shown,
[0033] The bottom of the separation cylinder 101 is fixedly connected to a collecting tank 102 corresponding to the upper and lower distribution of the sieve plate 204. The bottom opening of the collecting tank 102 is smaller than the top opening of the collecting tank 102.
[0034] Smaller tea leaves and debris fall out of the separation cylinder 101 and enter the collecting tank 102 , where they are gathered together and discharged. The bottom opening of the collecting tank 102 is relatively small, making it easier to collect the discharged smaller tea leaves and debris.
[0035] Exhaust fan 301 Figure 1 、 2 , 3,
[0036] An exhaust fan 301 is fixedly connected to the top center of the separation cylinder 101;
[0037] As the tea leaves tumble, the exhaust fan 301 operates synchronously, separating and lifting the dust between the tea leaves. The airflow generated by the exhaust fan 301 helps to absorb some of the dust and fine impurities generated during the screening process and discharge them out of the separation drum 101, ensuring that the final collected tea leaves are purer. During this process, the tea leaves remain in the screening drum 201, effectively preventing the tea leaves from being sucked away.
[0038] Protective cover 302 Figure 1 、 2 ,3,
[0039] A protective cover 302 is fixedly connected to the top of the exhaust fan 301;
[0040] The protective cover 302 can prevent external impurities from falling back into the separation cylinder 101.
[0041] Scraper 303 Figure 4 As shown,
[0042] The upper and lower ends of the screening cylinder 201 are fixedly connected with scrapers 303. The side of the scrapers 303 away from the screening cylinder 201 is in contact with the inner wall of the separation cylinder 101. The middle of the scrapers 303 is provided with multiple leaks.
[0043] Since the tea leaves screened by the screening cylinder 201 are affected by the holes with lower density, they fall more slowly. During this process, the scraper 303 can further tumble these impurities and tea leaves, which helps to separate the fine impurities and dust in the tea leaves and tumble them again. The impurities and dust are then driven up and discharged by the airflow generated by the exhaust fan 301, further improving the purity of the tea leaves.
[0044] Working principle:
[0045] The tea leaves enter from one end of the screening cylinder, the motor starts, and the screening cylinder is driven to rotate through the pulley and belt. The rotation of the screening cylinder makes the tea leaves roll fully inside, and collide with the stirring ribs on the inner wall at the same time, breaking up the tea leaves and preventing them from agglomerating. The tea leaves are blocked by the baffle in the screening cylinder. As the baffle moves, the tea leaves are lifted and finally separated from the baffle, falling as a whole, and collide with the stirring ribs again to be broken up. This process relies on gravity and the inclined baffle to guide the tea leaves to roll more fully, which helps to separate the impurities in the tea leaves more thoroughly. Some smaller tea leaves and debris leave the screening cylinder through the sieve. The tea leaves enter the separation cylinder below for screening. The middle of the sieve plate at the bottom of the separation cylinder is equipped with a plurality of holes distributed in an array. The density of the holes is less than that of the sieve openings, so that the tea debris falls out slowly to avoid excessive dust. The bottom of the separation cylinder is fixedly connected to a collection trough corresponding to the upper and lower distribution of the sieve plate. After the smaller tea leaves and debris enter the collection trough, they are gathered together and discharged. The exhaust fan at the top center of the separation cylinder runs to help absorb the dust and fine impurities generated by the tea leaves during the screening process and discharge them out of the separation cylinder, ensuring that the collected tea leaves are purer. The protective cover on the top of the exhaust fan prevents external impurities from falling back into the separation cylinder. The scrapers at the upper and lower ends of the screening cylinder fit the inner wall of the separation cylinder. Through the multiple leaks in the middle of the scraper, the tea leaves and impurities are further rolled, which helps to separate fine impurities and dust and improve the purity of the tea leaves.
[0046] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0047] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A tea screening machine, characterized by: The invention comprises a support (100) and a screening assembly (200), wherein a separation cylinder (101) is provided in the middle of the support (100), a screening assembly (200) is provided in the middle of the separation cylinder (101), the screening assembly (200) comprises a screening cylinder (201) provided in the middle of the separation cylinder (101), a plurality of baffles (202) are provided on the inner wall of the screening cylinder (201), and a plurality of stirring ribs (203) distributed in a ring array are provided on the inner wall of the screening cylinder (201).
2. A tea screening machine according to claim 1, characterized in that: The baffles (202) are all arranged at an angle.
3. A tea screening machine according to claim 1, characterized in that: The screening assembly (200) further comprises a screen plate (204) arranged at the bottom of the separation cylinder (101).
4. A tea screening machine according to claim 3, characterized in that: The bottom of the separation cylinder (101) is provided with a collecting trough (102) distributed above and below the sieve plate (204).
5. The tea screening machine according to claim 1, characterized in that: An exhaust fan (301) is provided on the top of the separation cylinder (101).
6. A tea screening machine according to claim 5, characterized in that: A protective cover (302) is provided on the top of the exhaust fan (301).
7. A tea screening machine according to claim 5, characterized in that: Scrapers (303) are provided at both the upper and lower ends of the screening cylinder (201).