Tea grading and screening device

Abstract

The utility model relates to the technical field of tea processing, and provides a tea grading and screening device, including a main housing, a screening plate is arranged inside the main housing, a pressure dividing plate is fixedly connected to the bottom of the screening plate, a rod sleeve is fixedly connected to the bottom of the pressure dividing plate, a piston rod is movably embedded in the inner surface of the rod sleeve, a shaft block is fixedly connected to the bottom of the piston rod, a connecting rod is rotatably connected to the inside of the shaft block, a double crank is rotatably connected to the end of the connecting rod away from the shaft block, a synchronization rod is fixedly connected to one side of the double crank, and the outer surface of the synchronization rod is rotatably connected to one side of the main housing. The utility model has a vibration transmission and screening structure, which can use the energy generated by vibration to transmit and screen tea leaves, and can screen tea leaves in the form of an assembly line, so that the screening efficiency of the device is high, and it does not need to be used for multiple manual operations, thereby reducing labor costs.

Description

Technical Field

[0001] The utility model relates to the technical field of tea processing, in particular to a tea grading and screening device. Background Art

[0002] The tea grading and screening device is a device used for tea processing and grading. Its main function is to screen and grade tea according to characteristics such as size, shape and quality, so as to classify tea into different grades and specifications. The tea grading and screening device can separate impurities, residues and foreign matter in tea through devices such as screens or screen plates. These impurities may include branches, leaves, stems, weeds, stones, etc. of tea. The purity and quality of tea can be improved by screening. The tea grading and screening device can classify tea according to size to make the size and shape of tea more uniform, which helps tea in subsequent processing, such as rolling, fermentation, baking, etc., to obtain a more uniform processing effect and improve the quality and taste of tea.

[0003] However, in the prior art, for example, China Publication No.: CN107413624A, "A Tea Grading and Screening Device", the invention discloses a tea grading and screening device, including a machine base, a motor, a vibration plate, a shell, a first spring, a guide rod and a screen frame, wherein the motor is fixed on the machine base, the vibration plate is fixed on the rotating shaft of the motor, a plurality of guide rods are movably plugged into the machine base, and the top of the guide rod is fixedly connected to the shell, the first spring is sleeved on the guide rod, and one end of the first spring abuts on the machine base, and the other end abuts on the shell, and a plurality of screen frames are layered in the shell from top to bottom, and the screen holes on the screen frames gradually become smaller from top to bottom. In the invention, the shell and the screen frame vibrate simultaneously, the screening efficiency is high, and the layered screen frames are convenient for realizing the grading and screening of tea leaves.

[0004] However, this device does not have a vibration transmission and screening structure, and cannot use the energy generated by vibration to transmit and screen the tea leaves. It cannot screen the tea leaves in the form of an assembly line, resulting in a low screening efficiency of the device. It requires multiple manual operations and uses, which increases labor costs. The device does not have a tea leaf transmission and scraping structure, and cannot scrape the accumulated tea leaves evenly, resulting in easy clogging of the tea leaves during screening, and the upper tea leaves cannot be screened, resulting in a poor screening effect of the device. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the prior art that the device has no vibration transmission and screening structure, cannot use the energy generated by vibration to transmit and screen the tea leaves, cannot screen the tea leaves in the form of an assembly line, resulting in low screening efficiency of the device, requiring multiple manual operations and use, increasing labor costs, and the device has no tea transmission and scraping structure, cannot scrape the accumulated tea leaves, resulting in easy clogging of the tea leaves during screening, and the upper tea leaves cannot be screened, resulting in poor screening effect of the device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tea grading and screening device comprises a main casing, the main casing is provided with a screening plate, the bottom of the screening plate is fixedly connected to a pressure dividing plate, the bottom of the pressure dividing plate is fixedly connected to a rod sleeve, the inner surface of the rod sleeve is movably embedded with a piston rod, the bottom of the piston rod is fixedly connected to an axis block, the inside of the axis block is rotatably connected to a connecting rod, the end of the connecting rod away from the axis block is rotatably connected to a double crank, one side of the double crank is fixedly connected to a synchronous rod, the outer surface of the synchronous rod is rotatably connected to one side of the main casing, the end of the synchronous rod away from the double crank is fixedly connected to a driving wheel, the outer surface of the driving wheel is transmission-connected with a synchronous belt, the inner surface of the synchronous belt away from the driving wheel is transmission-connected with a driven wheel, the synchronous rod will drive the driving wheel to rotate when it rotates, and then drive the driven wheel and the transmission rod to rotate under the transmission action of the synchronous belt.

[0007] As a preferred embodiment, a transmission rod is fixedly connected to a side of the driven rotating wheel close to the main housing, and an outer surface of the transmission rod is rotatably connected to the inside of the main housing, and the transmission rod rotates along with the driven rotating wheel.

[0008] As a preferred embodiment, the outer surface of the transmission rod is fixedly sleeved with an equalizing cylinder, and the outer surface of the equalizing cylinder is fixedly connected with a plurality of equalizing leaves. The equalizing cylinder and the equalizing leaves rotating with the transmission rod will flatten the accumulated tea leaves.

[0009] As a preferred embodiment, a power rod is fixedly connected to a side of the double crank away from the synchronization rod, and an outer surface of the power rod is rotatably connected to a side of the main housing, and the double crank rotates along with the power rod.

[0010] As a preferred embodiment, two L-shaped rods are fixedly connected to one side of the main housing away from the driving wheel, a motor is fixedly connected to the inner sides of the two L-shaped rods, the output end of the motor is fixedly connected to one end of the power rod, and the motor is fixed to the outer side of the main housing through the two L-shaped rods.

[0011] As a preferred embodiment, pressure beams are fixedly connected to both sides of the inner surface of the main housing, a first spring is fixedly connected to the top of the pressure beam, the top of the first spring is fixedly connected to the bottom of the pressure dividing plate, and the pressure beam is softly connected to the pressure dividing plate through the first spring.

[0012] As a preferred embodiment, a pressure plate is fixedly connected to the inner surface of the main casing, two second springs are fixedly connected to the top of the pressure plate, the tops of the two second springs are fixedly connected to the bottom of the sub-screen plate, and the pressure plate is flexibly connected to the sub-screen plate via the second springs.

[0013] As a preferred embodiment, the top of the main shell is connected to a feed port, one side of the main shell is connected to a discharge port, and the bottom of the inner surface of the discharge port is fixedly connected to a guide plate, and finally the sieved tea leaves will fall on the guide plate and finally flow out from the discharge port.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] 1. The utility model has a vibration transmission and screening structure, which can use the energy generated by vibration to transmit and screen tea leaves, and can screen tea leaves in the form of an assembly line, so that the screening efficiency of the device is high, and multiple manual operations are not required, thereby reducing labor costs.

[0016] 2. The utility model is provided with a tea transmission and scraping structure, which can scrape the accumulated tea leaves evenly to avoid tea blockage during screening, and the upper tea leaves can also be screened, and the screening effect of the device is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a tea grading and screening device provided by the utility model;

[0018] Figure 2 A schematic diagram of the three-dimensional structure of a tea grading and screening device provided by the utility model;

[0019] Figure 3 A schematic diagram of the side section structure of a tea grading and screening device provided by the utility model;

[0020] Figure 4 A schematic diagram of the front cross-section structure of a tea grading and screening device provided by the utility model;

[0021] Figure 5 The utility model provides a tea grading and screening device Figure 4 Schematic diagram of the enlarged structure of A.

[0022] Legend:

[0023] 1. Main housing; 2. Screen plate; 3. Pressure plate; 4. Rod sleeve; 5. Piston rod; 6. Shaft block; 7. Connecting rod; 8. Double crank; 9. Synchronous rod; 10. Active rotor; 11. Synchronous belt; 12. Driven rotor; 13. Transmission rod; 14. Equalizing cylinder; 15. Equalizing blade; 16. Power rod; 17. L-shaped rod; 18. Motor; 19. Pressure beam; 20. First spring; 21. Pressure plate; 22. Second spring; 23. Feed inlet; 24. Discharge outlet; 25. Guide plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution: a tea grading and screening device, including a main housing 1, a screening plate 2 is arranged inside the main housing 1, a pressure dividing plate 3 is fixedly connected to the bottom of the screening plate 2, a rod sleeve 4 is fixedly connected to the bottom of the pressure dividing plate 3, a piston rod 5 is movably embedded on the inner surface of the rod sleeve 4, a shaft block 6 is fixedly connected to the bottom of the piston rod 5, a connecting rod 7 is rotatably connected to the inside of the shaft block 6, a double crank 8 is rotatably connected to the end of the connecting rod 7 away from the shaft block 6, a synchronous rod 9 is fixedly connected to one side of the double crank 8, and a synchronous rod 9 is fixedly connected to the other side of the double crank 8. The outer surface of the rod 9 is rotatably connected to one side of the main housing 1, and the end of the synchronous rod 9 away from the double crank 8 is fixedly connected to the driving wheel 10, and the outer surface of the driving wheel 10 is transmission-connected to the synchronous belt 11, and the inner surface of the synchronous belt 11 is transmission-connected to the driven wheel 12 away from the driving wheel 10. When the double crank 8 rotates, it will drive one end of the connecting rod 7 to make a circular motion, and the other end of the connecting rod 7 will push the shaft block 6 and the piston rod 5 to reciprocate and hit the rod sleeve 4, so that the rod sleeve 4, the pressure dividing plate 3 and the sub-screen plate 2 are vibrated.

[0026] like Figure 1-5 As shown, a transmission rod 13 is fixedly connected to one side of the driven rotating wheel 12 close to the main housing 1 , and the outer surface of the transmission rod 13 is rotatably connected to the inside of the main housing 1 , and the driven rotating wheel 12 drives the transmission rod 13 to rotate.

[0027] like Figure 1-5 As shown, the outer surface of the transmission rod 13 is fixedly sleeved with an equalizing cylinder 14, and the outer surface of the equalizing cylinder 14 is fixedly connected with a plurality of equalizing leaves 15. The equalizing cylinder 14 and the equalizing leaves 15 rotating with the transmission rod 13 will flatten the accumulated tea leaves.

[0028] like Figure 1-5 As shown, a power rod 16 is fixedly connected to one side of the double crank 8 away from the synchronization rod 9 , and an outer surface of the power rod 16 is rotatably connected to one side of the main housing 1 , and the double crank 8 will rotate along with the power rod 16 .

[0029] like Figure 1-5 As shown, two L-shaped rods 17 are fixedly connected to one side of the main housing 1 away from the driving wheel 10, and a motor 18 is fixedly connected to the inner side of the two L-shaped rods 17. The output end of the motor 18 is fixedly connected to one end of the power rod 16. When the motor 18 is energized, it will drive the power rod 16 to rotate.

[0030] like Figure 1-5 As shown, pressure beams 19 are fixedly connected to both sides of the inner surface of the main casing 1, a first spring 20 is fixedly connected to the top of the pressure beam 19, the top of the first spring 20 is fixedly connected to the bottom of the pressure dividing plate 3, and the pressure beam 19 is softly connected to the pressure dividing plate 3 through the first spring 20.

[0031] like Figure 1-5 As shown, a pressure plate 21 is fixedly connected to the inner surface of the main casing 1, and two second springs 22 are fixedly connected to the top of the pressure plate 21. The tops of the two second springs 22 are fixedly connected to the bottom of the sub-screen plate 2, and the pressure plate 21 is softly connected to the sub-screen plate 2 via the second springs 22.

[0032] like Figure 1-5 As shown, the top of the main housing 1 is connected to a feed port 23, and one side of the main housing 1 is connected to a discharge port 24. The bottom of the inner surface of the discharge port 24 is fixedly connected to a guide plate 25. Finally, the sieved tea leaves will fall on the guide plate 25 and finally flow out from the discharge port 24.

[0033] Working principle: first, put the tea leaves through the feed port 23 onto the top of the sieve plate 2 in the main housing 1, then start the external power supply of the motor 18, the motor 18 is connected to the external power supply through wires, the model of the motor 18 is: DOY106, rated power: 750W; the motor 18 is fixed to the outside of the main housing 1 through two L-shaped rods 17, and the motor 18 will drive the power rod 16 to rotate after being energized, and drive the double crank 8 and the synchronous rod 9 to rotate, and the double crank 8 will drive one end of the connecting rod 7 to make a circular motion when rotating, and the other end of the connecting rod 7 will push the shaft block 6 and the piston rod 5 to reciprocate and hit the rod sleeve 4, so that the rod sleeve 4, the pressure plate 3 and the sieve plate 2 are vibrated, and the pressure beam 19 The first spring 20 above and the second spring 22 above the pressure plate 21 make the vibration of the sieve plate 2 more stable through the form of soft connection. Under the action of vibration, the tea leaves on the sieve plate 2 will be transmitted, and the tea leaves with a diameter smaller than the sieve holes of the sieve plate 2 will fall down. In order to prevent the tea leaves from piling up and the tea leaves on the upper layer from being screened, the synchronous rod 9 will drive the active wheel 10 to rotate when it rotates, and then drive the driven wheel 12 and the transmission rod 13 to rotate under the transmission action of the synchronous belt 11. The equalizing cylinder 14 and the equalizing leaf 15 that rotate with the transmission rod 13 will flatten the accumulated tea leaves, and finally the screened tea leaves will fall on the guide plate 25 and finally flow out from the discharge port 24.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A tea grading and screening device, characterized in that: The invention comprises a main housing (1), wherein a sub-screen plate (2) is arranged inside the main housing (1), the bottom of the sub-screen plate (2) is fixedly connected to a pressure dividing plate (3), the bottom of the pressure dividing plate (3) is fixedly connected to a rod sleeve (4), a piston rod (5) is movably embedded in the inner surface of the rod sleeve (4), the bottom of the piston rod (5) is fixedly connected to a shaft block (6), the shaft block (6) is rotatably connected to a connecting rod (7), and the connecting rod (7) is rotatably connected to the end away from the shaft block (6). A double crank (8) is connected, one side of the double crank (8) is fixedly connected to a synchronization rod (9), the outer surface of the synchronization rod (9) is rotatably connected to one side of the main housing (1), the end of the synchronization rod (9) away from the double crank (8) is fixedly connected to a driving wheel (10), the outer surface of the driving wheel (10) is transmission-connected to a synchronization belt (11), and the inner surface of the synchronization belt (11) away from the driving wheel (10) is transmission-connected to a driven wheel (12).

2. A tea grading and screening device according to claim 1, characterized in that: A transmission rod (13) is fixedly connected to one side of the driven rotating wheel (12) close to the main housing (1), and the outer surface of the transmission rod (13) is rotatably connected to the inside of the main housing (1).

3. A tea grading and screening device according to claim 2, characterized in that: An equalizing cylinder (14) is fixedly sleeved on the outer surface of the transmission rod (13), and a plurality of equalizing leaves (15) are fixedly connected to the outer surface of the equalizing cylinder (14).

4. A tea grading and screening device according to claim 1, characterized in that: A power rod (16) is fixedly connected to the side of the double crank (8) away from the synchronization rod (9), and the outer surface of the power rod (16) is rotatably connected to one side of the main housing (1).

5. A tea grading and screening device according to claim 4, characterized in that: Two L-shaped rods (17) are fixedly connected to one side of the main housing (1) away from the driving wheel (10), a motor (18) is fixedly connected to the inner sides of the two L-shaped rods (17), and an output end of the motor (18) is fixedly connected to one end of the power rod (16).

6. A tea grading and screening device according to claim 5, characterized in that: Pressure beams (19) are fixedly connected to both sides of the inner surface of the main housing (1), a first spring (20) is fixedly connected to the top of the pressure beam (19), and the top of the first spring (20) is fixedly connected to the bottom of the pressure dividing plate (3).

7. A tea grading and screening device according to claim 6, characterized in that: A pressure plate (21) is fixedly connected to the inner surface of the main housing (1), two second springs (22) are fixedly connected to the top of the pressure plate (21), and the tops of the two second springs (22) are fixedly connected to the bottom of the sub-screen plate (2).

8. A tea grading and screening device according to claim 7, characterized in that: The top of the main housing (1) is connected to a feed port (23), one side of the main housing (1) is connected to a discharge port (24), and a guide plate (25) is fixedly connected to the bottom of the inner surface of the discharge port (24).

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