Automatic tea screening and grading device

Abstract

The utility model relates to the technical field of tea leaf processing, and discloses an automatic tea leaf screening and grading device which comprises a box body, the top of the box body is fixedly connected with a feeding box, one side of the box body is provided with a motor, the output end of the motor is fixedly connected with a second gear, the outer wall of a rotating shaft is fixedly connected with a rotating wheel, and the outer wall of the rotating shaft is fixedly connected with a second gear. A first screen is fixedly connected to the inner side of the first fixing frame, a second screen is fixedly connected to the inner side of the second fixing frame, a material receiving plate is arranged below the second screen, and a vibration mechanism is arranged below the first fixing frame. According to the tea leaf screening device, the second gear is driven to rotate through rotation of the motor, the rotating wheel is further driven to rotate through the rotating shaft, poured tea leaves are scattered through rotation of the rotating wheel, the situation that the poured tea leaves are clustered and cannot be fully screened is prevented, and the tea leaves are screened more fully.

Description

Technical Field

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

[0002] Tea, commonly known as cha, generally includes the leaves and buds of tea trees. Tea making is the process of turning fresh tea leaves of tea trees into various semi-finished or finished teas through various processing steps. Screening is a very important step in the tea-making process. The main raw material in tea preparation is tea leaves, and the quality of tea leaves directly affects the quality of tea. Therefore, after tea production, it is necessary to screen the tea leaves, and screen the tea leaves from tea leaf fragments, tea stalks, etc. to improve the quality of tea leaves.

[0003] After retrieval, a tea grading machine with a stalk picking device is disclosed in the publication number: CN207615200U, which includes a frame, a feeding device, a filter screen drum, and a driving device. The feeding device is internally connected to the filter screen drum. The feeding device includes a feeding cylinder, and a guiding through hole is opened at the connection between the feeding cylinder and the filter screen drum; and a stalk picking device, which includes a screening plate inclined on the feeding cylinder, a sunken hole opened on the screening plate, a screen fixed in the sunken hole, and a vibration motor installed under the screening plate. The lowest end of the screening plate is located below the guiding through hole. The tea grading machine with a stalk picking device provided by the embodiment of the utility model sets a stalk picking device in the feeding cylinder and inclines the stalk picking device in the feeding cylinder, so that the tea leaves pass through the stalk picking device before grading, and the tea stalks are automatically separated; a guiding through hole is opened on the feeding cylinder, so that the tea leaves after stalk picking can be guided into the filter screen drum for grading, realizing a comprehensive upgrade of the automation of tea stalk picking and grading.

[0004] Although the above application screens the tea leaves, the tea leaves cannot be scattered during screening, which easily causes tea leaf accumulation and affects the screening efficiency. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides an automatic tea screening and grading device, aiming to improve the problem that the tea leaves cannot be scattered during screening.

[0006] To achieve the above object, the present utility model provides the following technical solution: An automatic tea screening and grading device, comprising a box body, a feeding box is fixedly connected to the top of the box body, a motor is arranged on one side of the box body, an output end of the motor is fixedly connected to a second gear, a first gear is meshed with teeth of the second gear, a rotating shaft is fixedly connected to the middle of the first gear, a rotating wheel is fixedly connected to an outer wall of the rotating shaft, a first fixing frame is fixedly connected to an inner wall of the box body, a first screen is fixedly connected to an inner side of the first fixing frame, a second fixing frame is fixedly connected to the inner wall of the box body, a second screen is fixedly connected to an inner side of the second fixing frame, a pore diameter of the first screen is larger than a pore diameter of the second screen, a receiving plate is arranged below the second screen, and a vibration mechanism is arranged below the first fixing frame.

[0007] Preferably, the vibration mechanism comprises a cam, the cam is fixedly connected to the output end of the motor, a vibration rod is arranged below the cam, a sleeve is fixedly connected to a bottom of the vibration rod, a spring is arranged inside the sleeve, and one end of the spring is fixedly connected to the bottom of the vibration rod.

[0008] Preferably, the vibration rod penetrates through one side of the second fixing frame, and the sleeve is fixedly connected to one side of the receiving plate.

[0009] Preferably, a handle is fixedly connected to one side of the receiving plate, and the receiving plate is slidably connected to the inner wall of the box body.

[0010] Preferably, a dust collector is arranged on one side of the box body, a dust passage pipe is fixedly connected to one side of the dust collector, one end of the dust passage pipe is fixedly connected to a dust inlet box, and a filter screen is arranged inside the dust inlet box.

[0011] Preferably, a second feeding box is fixedly connected to one side of the first screen, and a second receiving box is arranged below the second feeding box.

[0012] Preferably, a first feeding box is fixedly connected to one side of the second screen, and a first receiving box is arranged below the first feeding box.

[0013] Preferably, a plurality of through holes are arranged on a surface of the receiving plate, and the dust inlet box is located below the receiving plate.

[0014] The present utility model has the following beneficial effects:

[0015] 1. In the present utility model, the rotation of the motor drives the second gear to rotate, the rotation of the second gear drives the first gear to rotate, the rotation shaft further drives the rotation of the rotating wheel, and the rotation of the rotating wheel disperses the poured tea leaves, preventing the poured tea leaves from aggregating into a group and being unable to be fully screened, so that the tea leaves are more fully screened when being screened.

[0016] 2. In the present utility model, through the cooperation of the motor and the cam, the tea leaves are subjected to uniform vibration during the screening process, avoiding damage to the tea leaves caused by long-term vibration, improving the quality of the tea leaves. Through the combination of the first sieve and the second sieve, and the settings of the first blanking box and the second blanking box, automatic screening and grading of the tea leaves are realized.

[0017] 3. In the present utility model, by setting a handle, the receiving plate can slide conveniently within the box body, improving the convenience of operation. At the same time, by setting a vacuum cleaner and a dust ventilation pipe, the dust generated during the tea leaf screening process is effectively collected and discharged, ensuring the cleanliness of the tea leaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of an automatic tea leaf screening and grading device proposed by the present utility model;

[0019] Figure 2 is a schematic diagram of the first sieve of an automatic tea leaf screening and grading device proposed by the present utility model;

[0020] Figure 3 is a schematic diagram of the cam of an automatic tea leaf screening and grading device proposed by the present utility model;

[0021] Figure 4 is a schematic diagram of the spring of an automatic tea leaf screening and grading device proposed by the present utility model.

[0022] Legend Explanation:

[0023] 1. Box body; 2. First gear; 3. First receiving box; 4. Motor; 5. Second gear; 6. Dust ventilation pipe; 7. Vacuum cleaner; 8. Feeding box; 9. Rotating wheel; 10. First sieve; 11. Second sieve; 12. Receiving plate; 13. Handle; 14. Cam; 15. Vibration rod; 16. First blanking box; 17. Dust inlet box; 18. Second blanking box; 19. First fixing frame; 20. Second fixing frame; 21. Spring; 22. Sleeve; 23. Second receiving box; 24. Rotating shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Refer to Figures 1 - 3, An embodiment provided by the present utility model: An automatic tea screening and grading device, including a box body 1, a feeding box 8 is fixedly connected to the top of the box body 1, a motor 4 is arranged on one side of the box body 1, the output end of the motor 4 is fixedly connected to a second gear 5, the teeth of the second gear 5 are meshed with a first gear 2, a rotating shaft 24 is fixedly connected to the middle of the first gear 2, a rotating wheel 9 is fixedly connected to the outer wall of the rotating shaft 24, a first fixing frame 19 is fixedly connected to the inner wall of the box body 1, a first screen 10 is fixedly connected to the inner side of the first fixing frame 19, a second fixing frame 20 is fixedly connected to the inner wall of the box body 1, a second screen 11 is fixedly connected to the inner side of the second fixing frame 20, the aperture of the first screen 10 is larger than that of the second screen 11, a receiving plate 12 is arranged below the second screen 11, and a vibration mechanism is arranged below the first fixing frame 19.

[0026] Specifically, pour the tea leaves from the feeding box 8, drive the second gear 5 to rotate through the motor 4, drive the rotation of the first gear 2 through the rotation of the second gear 5, further drive the rotation of the rotating wheel 9 through the rotating shaft 24, screen the size of the tea leaves through the different aperture sizes of the first screen 10 and the second screen 11, and finally the screened tea leaves fall onto the receiving plate 12. The poured tea leaves are scattered through the rotation of the rotating wheel 9 to prevent the poured agglomerated tea leaves from being fully screened. Different screenings are carried out by pouring once, which improves the screening efficiency.

[0027] Refer to Figures 2 - 4 , The vibration mechanism includes a cam 14, the cam 14 is fixedly connected to the output end of the motor 4, a vibration rod 15 is arranged below the cam 14, a sleeve 22 is fixedly connected to the bottom of the vibration rod 15, a spring 21 is arranged inside the sleeve 22, one end of the spring 21 is fixedly connected to the bottom of the vibration rod 15, the vibration rod 15 penetrates through one side of the second fixing frame 20, and the sleeve 22 is fixedly connected to one side of the receiving plate 12.

[0028] Specifically, drive the cam 14 to rotate through the motor 4, realize the vibration of the first screen 10 through the convex part of the cam 14 contacting the first screen 10. When the convex part of the cam 14 contacts the vibration rod 15, the vibration rod 15 vibrates under the action of the spring 21, drive the second fixing frame 20 to vibrate through the vibration of the vibration rod 15, so as to realize the vibration of the second screen 11, and further realize the screening of the tea leaves.

[0029] Refer to Figure 2 , A handle 13 is fixedly connected to one side of the receiving plate 12, and the receiving plate 12 is slidably connected to the inner wall of the box body 1.

[0030] Specifically, pull the handle 13 to slide the receiving plate 12 out of the box body 1 to take out the tea leaves on the receiving plate 12.

[0031] Reference Figure 3 On one side of the box body 1, a vacuum cleaner 7 is provided. One side of the vacuum cleaner 7 is fixedly connected to a dust pipe 6. One end of the dust pipe 6 is fixedly connected to a dust inlet box 17. A filter screen is arranged inside the dust inlet box 17.

[0032] Specifically, the vacuum cleaner 7 collects the fine dust and impurities shaken off during the tea screening process, preventing the dust and impurities from remaining inside the box body 1 and affecting the tea quality. The filter screen prevents large impurities from entering the vacuum cleaner 7 through the dust pipe 6 and causing damage to the vacuum cleaner 7.

[0033] Reference Figure 2 On one side of the first sieve 10, a second blanking box 18 is fixedly connected. A second material receiving box 23 is arranged below the second blanking box 18. On one side of the second sieve 11, a first blanking box 16 is fixedly connected. A first material receiving box 3 is arranged below the first blanking box 16.

[0034] Specifically, the tea on the first sieve 10 enters the second material receiving box 23 through the second blanking box 18, and the tea on the second sieve 11 enters the first material receiving box 3 through the first blanking box 16, realizing the automatic grading of tea during the screening process.

[0035] Reference Figure 2 and Figure 3 On the surface of the material receiving plate 12, a plurality of through holes are provided. The dust inlet box 17 is located below the material receiving plate 12.

[0036] Specifically, the fine dust and impurities fall to the bottom through the through holes, and the dust inlet box 17 collects the fine dust and impurities.

[0037] Working principle: Pour the tea leaves from the feeding box 8. Drive the second gear 5 to rotate through the motor 4, and further drive the rotation of the rotating wheel 9. Through the rotation of the rotating wheel 9, the poured tea leaves are scattered to prevent the poured agglomerated tea leaves from being unable to be fully screened. By pouring once and performing different screenings, the screening efficiency is improved. Drive the cam 14 to rotate through the motor 4. The vibration of the first screen 10 is realized by the contact of the convex part of the cam 14 with the first screen 10. When the convex part of the cam 14 contacts the vibration rod 15, the vibration of the second fixing frame 20 is driven through the vibration of the vibration rod 15, so as to realize the vibration of the second screen 11, and further realize the screening of the tea leaves. The size of the tea leaves is screened by the different aperture sizes of the first screen 10 and the second screen 11. The tea leaves on the first screen 10 enter the second receiving box 23 through the second feeding box 18. The tea leaves on the second screen 11 enter the first receiving box 3 through the first feeding box 16. The finally screened tea leaves fall onto the receiving plate 12. Slide the receiving plate 12 out of the box body 1 by pulling the handle 13, and take out the tea leaves on the receiving plate 12 to realize the automatic grading of the tea leaves during the screening process. The small dust impurities shaken off by the tea leaves during the screening process are collected by the vacuum cleaner 7 to prevent the dust impurities from remaining in the box body 1 and affecting the quality of the tea leaves.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic tea screening and grading device, comprising a housing (1), characterized in that: A feed box (8) is fixedly connected to the top of the box body (1); a motor (4) is provided on one side of the box body (1); a second gear (5) is fixedly connected to the output end of the motor (4); the teeth of the second gear (5) are meshingly connected to the first gear (2); a rotating shaft (24) is fixedly connected to the middle of the first gear (2); a rotating wheel (9) is fixedly connected to the outer wall of the rotating shaft (24); a first fixed frame (19) is fixedly connected to the inner wall of the box body (1); a first screen (10) is fixedly connected to the inner side of the first fixed frame (19); a second fixed frame (20) is fixedly connected to the inner wall of the box body (1); a second screen (11) is fixedly connected to the inner side of the second fixed frame (20); the aperture of the first screen (10) is larger than the aperture of the second screen (11); a material receiving plate (12) is provided below the second screen (11); and a vibration mechanism is provided below the first fixed frame (19).

2. The automatic tea screening and grading device according to claim 1, characterized in that: The vibration mechanism comprises a cam (14), the cam (14) being fixedly connected to the output end of the motor (4), a vibration rod (15) being arranged below the cam (14), a sleeve (22) being fixedly connected to the bottom of the vibration rod (15), a spring (21) being arranged inside the sleeve (22), and one end of the spring (21) being fixedly connected to the bottom of the vibration rod (15).

3. The automatic tea screening and grading device according to claim 2, characterized in that: The vibration rod (15) passes through one side of the second fixing frame (20), and the sleeve (22) is fixedly connected to one side of the material receiving plate (12).

4. The automatic tea screening and grading device according to claim 3 is characterized in that: A handle (13) is fixedly connected to one side of the material receiving plate (12), and the material receiving plate (12) is slidably connected to the inner wall of the box body (1).

5. The automatic tea screening and grading device according to claim 4, characterized in that: A vacuum cleaner (7) is provided on one side of the box body (1), a dust pipe (6) is fixedly connected to one side of the vacuum cleaner (7), one end of the dust pipe (6) is fixedly connected to a dust inlet box (17), and a filter is provided inside the dust inlet box (17).

6. The automatic tea screening and grading device according to claim 1, characterized in that: A second material discharge box (18) is fixedly connected to one side of the first screen (10), and a second material receiving box (23) is arranged below the second material discharge box (18).

7. The automatic tea screening and grading device according to claim 1, characterized in that: A first material discharge box (16) is fixedly connected to one side of the second screen (11), and a first material receiving box (3) is arranged below the first material discharge box (16).

8. The automatic tea screening and grading device according to claim 5, characterized in that: The surface of the receiving plate (12) is provided with a plurality of through holes, and the dust inlet box (17) is located below the receiving plate (12).

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