A tea leaf sifting machine

Abstract

The utility model discloses a tea screening machine, including the box, the box inside is equipped with vibration mechanism, the vibration mechanism includes the support board, the support board fixed mounting is in the box inside, the support board top fixed mounting has the spring, the vibration mechanism has three groups altogether, and the top of three groups spring is fixed mounting respectively has first screening board, second screening board and third screening board from top to bottom, first screening board, second screening board and third screening board sieve hole gradually become smaller from big, the box inside rotation has three cams of installation, and three cams are located respectively first screening board, second screening board and third screening board's bottom, the utility model relates to food processing technical field, and the tea screening machine makes the airflow of jet port to the tea of grading and blow to the discharge gate, realizes the dead angle of no discharge, and need not manual intervention, and the discharge efficiency is improved significantly, and the labor intensity is reduced, and the secondary pollution that the manual contact can cause is avoided.

Description

Technical Field

[0001] This utility model relates to the field of agricultural processing technology, specifically a tea sorting machine. Background Technology

[0002] Tea sorting is a crucial process for ensuring tea quality, aiming to separate tea leaves of different sizes and remove impurities. Currently used vibrating screens and drum screens have significant drawbacks: vibrating screens have low sorting accuracy and struggle to distinguish tea leaves that are similar in shape but different in quality; drum screens consume a lot of energy, easily damage tea leaves, and are inconvenient to clean and maintain. Neither can meet the intelligent, efficient, and precise sorting requirements of modern tea processing.

[0003] The patent publication number "CN211247325U" discloses "This utility model relates to the field of tea processing, and aims to provide a screening machine with a simple vibration structure and minimal impact from vibration during machine operation. The technical solution adopted is as follows: A tea screening machine includes a casing, inside which are arranged several inclined filter plates and collecting plates. A first motor is provided at the bottom of the casing, and the first motor is connected to a rotating shaft. The top end of the rotating shaft passes through the middle of the filter plates and collecting plates and extends to the top wall of the casing. Protrusions are provided on the outer wall of the rotating shaft below the filter plates, and adjacent protrusions are staggered on the rotating shaft. Support plates are provided on the inner walls of the casing below both sides of the filter plates, and several first springs are provided on the support plates. The rotating shaft includes a lower shaft section, a buffer section, and an upper shaft section. The buffer section includes a rubber column connecting the lower shaft section and the upper shaft section. A cavity is provided in the lower part of the upper shaft section, and a pair of vertical guide columns are provided at the top end of the lower shaft section."

[0004] To address the aforementioned issues, existing tea screening machines have limited vibration amplitude and frequency of individual springs, making it difficult to fully disperse tea leaves and affecting screening accuracy. When the inclined filter plate vibrates, tea leaves tend to accumulate in large quantities at the discharge port, causing blockages and reducing screening efficiency. Fine particles such as debris generated during screening easily fall to the bottom of the machine casing, which is difficult to clean thoroughly due to the complex internal structure of the casing.

[0005] Therefore, this utility model provides a tea sorting machine to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a tea sorting machine that solves the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a tea sieving machine, comprising a housing, a vibration mechanism provided inside the housing, the vibration mechanism comprising a support plate fixedly installed inside the housing, a spring fixedly installed on the top of the support plate, the vibration mechanism comprising three sets, a first sieving plate, a second sieving plate and a third sieving plate respectively fixedly installed on the top of the three sets of springs from top to bottom, the sieve holes of the first sieving plate, the second sieving plate and the third sieving plate decreasing in size sequentially, and three cams rotatably installed inside the housing, the three cams being located at the bottom of the first sieving plate, the second sieving plate and the third sieving plate respectively.

[0008] Preferably: a main motor is fixedly connected to the left side of the housing, the motor shaft of the main motor passes through the housing and is fixedly connected to the corresponding cam, a feed inlet is fixedly installed on the top side of the housing, an auxiliary motor is fixedly installed on the side of the feed inlet, a connecting column is rotatably installed on the inside of the feed inlet, one end of the connecting column passes through the feed inlet and is fixedly connected to the output end of the auxiliary motor, and a rubber rod is fixedly installed on the side of the connecting column.

[0009] Preferably, an air pump and an air chamber are fixedly installed on the rear side of the box, an air pipe is fixedly installed on the top of the air pump, the air pump and the air chamber are connected by the air pipe, and an air jet is fixedly installed at the connection between the box and the air chamber. The air jet is fixedly installed above the first screening plate, the second screening plate and the third screening plate respectively.

[0010] Preferably, a first discharge port, a second discharge port, and a third discharge port are fixedly installed on the front side of the box body, and baffles are slidably installed at the communication points between the first discharge port, the second discharge port, and the third discharge port and the box body.

[0011] Preferably, a collection trough is slidably installed on the inner bottom side of the box.

[0012] Preferably, the bottom of the connection points between the first, second, and third discharge ports and the housing is level with the top of the first, second, and third screening plates, and the connection points between the first, second, and third discharge ports and the housing, as well as the air jet, are in a horizontal position.

[0013] Beneficial effects

[0014] This utility model provides a tea sorting machine. Compared with the prior art, it has the following advantages:

[0015] 1. This tea sorting machine uses a vibration mechanism to generate high-frequency stable vibrations on the sorting plate. The tea leaves are fully dispersed and constantly jumping on the surface of the sorting plate, effectively preventing accumulation and entanglement, improving the efficiency and grading accuracy of tea sorting, and effectively separating tea leaves of different specifications.

[0016] 2. This tea sorting machine uses a jet nozzle to blow the graded tea leaves towards the discharge port, achieving seamless discharge without any blind spots. It eliminates the need for manual intervention, significantly improving discharge efficiency, reducing labor intensity, avoiding secondary contamination that may result from manual contact, and significantly enhancing the automation level and hygiene standards of tea production. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the external structure of this utility model;

[0019] Figure 2 This is a structural front view of the present invention;

[0020] Figure 3 This is a longitudinal anatomical view of the right half of the structure of this utility model;

[0021] Figure 4 This is a longitudinal anatomical view of the left half of the structure of this utility model;

[0022] Figure 5 This is the structure of the utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0023] In the diagram: 1. Housing; 2. Main motor; 3. Feed inlet; 4. Auxiliary motor; 5. Connecting column; 6. Rubber rod; 7. Air pump; 8. Air pipe; 9. Air chamber; 10. First discharge port; 11. Second discharge port; 12. Third discharge port; 13. First screening plate; 14. Second screening plate; 15. Third screening plate; 16. Collection tank; 17. Air jet nozzle; 18. Vibration mechanism; 181. Spring; 182. Support plate; 19. Cam; 20. Baffle. Detailed Implementation

[0024] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," 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 application 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 application. The terms "installation," "connection," and "linking" 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0025] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] Reference Figures 1 to 5 This application provides a tea sieving machine, including a housing 1. The housing 1 has a vibration mechanism 18 inside. The vibration mechanism 18 includes a support plate 182, which is fixedly installed inside the housing 1. A spring 181 is fixedly installed on the top of the support plate 182. The vibration mechanism 18 has three sets. From top to bottom, the tops of the three sets of springs 181 are respectively fixedly installed with a first sieving plate 13, a second sieving plate 14, and a third sieving plate 15. The sieve holes of the first sieving plate 13, the second sieving plate 14, and the third sieving plate 15 decrease in size. Three cams 19 are rotatably installed inside the housing 1. The three cams 19 are respectively located at the bottom of the first sieving plate 13, the second sieving plate 14, and the third sieving plate 15. A main motor 2 is fixedly connected to the left side of the housing 1. The motor shaft of the main motor 2 passes through the housing 1 and is fixedly connected to the corresponding cam 19.

[0027] In this embodiment, the three main motors 2 on the left side of the housing 1 are first started, causing the three cams to start rotating. The cams in the first screening plate 13, the second screening plate 14, and the third screening plate 15 start to move along with the cam 19. Then, the springs 181 in the vibration mechanism 18 distributed at the bottom dead corners of the first screening plate 13, the second screening plate 14, and the third screening plate 15 provide vibration and elastic support, causing the tea leaves to fall downward through different sieve holes.

[0028] Reference Figures 1 to 5 In one aspect of this embodiment, a feed inlet 3 is fixedly installed on the top side of the box, an auxiliary motor 4 is fixedly installed on the side of the feed inlet 3, a connecting column 5 is rotatably installed on the inside of the feed inlet 3, one end of the connecting column 5 passes through the feed inlet 3 and is fixedly connected to the output end of the auxiliary motor 4, and a rubber rod 6 is fixedly installed on the side of the connecting column 5.

[0029] In this embodiment, the auxiliary motor 4 is started first, which causes the connecting column 5 to drive the rubber rod 6 to start rotating. This allows the tea leaves that have formed clumps to be initially broken up when they are poured into the feed inlet 3, making it easier for them to be screened later.

[0030] Reference Figures 1 to 5 In one aspect of this embodiment, an air pump 7 and an air chamber 9 are fixedly installed on the rear side of the housing 1. An air pipe 8 is fixedly installed on the top of the air pump 7. The air pump 7 and the air chamber 9 are connected through the air pipe 8. An air jet 17 is fixedly installed at the connection between the housing 1 and the air chamber 9. The air jet 17 is fixedly installed above the first screening plate 13, the second screening plate 14, and the third screening plate 15, respectively. A first discharge port 10, a second discharge port 11, and a third discharge port 12 are fixedly installed on the front side of the housing 1. A baffle 20 is slidably installed at the connection between the first discharge port 10, the second discharge port 11, and the third discharge port 12 and the housing 1. A collection trough 16 is slidably installed on the inner side of the bottom of the housing 1.

[0031] In this embodiment, after screening is completed, the baffles 20 in front of the first discharge port 10, the second discharge port 11 and the third discharge port 12 are first pulled upwards, and then the air pump 7 is started so that the air pump 7 delivers gas through the air pipe 8 to the air chamber 9. Then the gas is sprayed out through the jet nozzle 17 to blow the screened tea leaves toward the discharge port. After the discharge is completed, the bottom mobile phone slot 16 is pulled out to discharge the debris.

[0032] Reference Figures 1 to 5 In one aspect of this embodiment, the bottom of the connection between the first discharge port 10, the second discharge port 11, and the third discharge port 12 and the housing 1 is horizontally flush with the top of the first screening plate 13, the second screening plate 14, and the third screening plate 15. The connection between the first discharge port 10, the second discharge port 11, and the third discharge port 12 and the housing 1 and the air jet 17 are in a horizontal position.

[0033] In this embodiment, the tops of the first screening plate 13, the second screening plate 14, and the third screening plate are ensured to be horizontal with the bottoms of the first discharge port 10, the second discharge port 11, and the third discharge port 12 to prevent dead zones when the jet nozzle 17 sprays air.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] Working principle: The auxiliary motor 4 drives the connecting column 5 and the rubber rod 6 to rotate, initially breaking up the clumps of tea leaves poured into the feed port 3. The main motor 2 drives the cam 19 to rotate, periodically lifting the first screening plate 13, the second screening plate 14 and the third screening plate 15. When the cam 19 rotates away, the spring 181 at the top of the support plate 182 provides elastic support and restoring force, causing the screening plates to vibrate at high frequency. Tea leaves of different specifications are graded and fall due to the difference in the size of the sieve holes. After screening, the baffles 20 at the first discharge port 10, the second discharge port 11 and the third discharge port 12 are opened. The air pump 7 pressurizes the gas through the air pipe 8 to the air chamber 9, and then sprays it out through the jet nozzle 17, blowing the graded tea leaves to the corresponding discharge port. After discharge, the collection trough 16 located on the inner side of the bottom of the box 1 is pulled out to clean the debris. The design of the discharge port being level with the top of the screening plate and at the same level as the jet nozzle 17 ensures that there are no dead angles in the air jet and ensures that the tea screening and discharge are carried out efficiently and orderly.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tea leaf sifting machine comprising a housing (1), characterised in that: The box (1) is provided with a vibration mechanism (18) inside. The vibration mechanism (18) includes a support plate (182). The support plate (182) is fixedly installed inside the box (1). A spring (181) is fixedly installed on the top of the support plate (182). The vibration mechanism (18) has three sets. The top of the three sets of springs (181) from top to bottom are respectively fixedly installed with a first screening plate (13), a second screening plate (14) and a third screening plate (15). The sieve holes of the first screening plate (13), the second screening plate (14) and the third screening plate (15) decrease in size from large to small. Three cams (19) are rotatably installed inside the box (1). The three cams (19) are respectively located at the bottom of the first screening plate (13), the second screening plate (14) and the third screening plate (15).

2. A tea screening machine according to claim 1, characterised in that: A main motor (2) is fixedly connected to the left side of the housing (1). The motor shaft of the main motor (2) passes through the housing (1) and is fixedly connected to the corresponding cam (19). A feed inlet (3) is fixedly installed on the top side of the housing (1). An auxiliary motor (4) is fixedly installed on the side of the feed inlet (3). A connecting column (5) is rotatably installed on the inside of the feed inlet (3). One end of the connecting column (5) passes through the feed inlet (3) and is fixedly connected to the output end of the auxiliary motor (4). A rubber rod (6) is fixedly installed on the side of the connecting column (5).

3. A tea screening machine as claimed in claim 1 wherein: An air pump (7) and an air chamber (9) are fixedly installed on the rear side of the box (1). An air pipe (8) is fixedly installed on the top of the air pump (7). The air pump (7) and the air chamber (9) are connected through the air pipe (8). An air nozzle (17) is fixedly installed at the connection between the box (1) and the air chamber (9). The air nozzle (17) is fixedly installed above the first screening plate (13), the second screening plate (14), and the third screening plate (15), respectively.

4. A tea screening machine as claimed in claim 1, wherein: The front side of the box (1) is fixedly installed with a first discharge port (10), a second discharge port (11) and a third discharge port (12). Baffles (20) are slidably installed at the connection points between the first discharge port (10), the second discharge port (11) and the third discharge port (12) and the box (1).

5. A tea screening machine as claimed in claim 1, wherein: A collection trough (16) is slidably installed on the inner bottom of the box (1).

6. A tea screening machine as claimed in claim 4, wherein: The bottom of the connection between the first discharge port (10), the second discharge port (11), and the third discharge port (12) and the box body (1) is level with the top of the first screening plate (13), the second screening plate (14), and the third screening plate (15). The connection between the first discharge port (10), the second discharge port (11), and the third discharge port (12) and the box body (1) and the air jet (17) are in a horizontal position.

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