Screening device for black tea fermentation

Abstract

The screening and filtering device comprises a base, a control switch, a supporting frame and a screening plate, the control switch is installed at the rear end of the base, the screening plate is connected to the top end of the base through the supporting frame, side baffles are fixed to the side ends of the screening plate, and two sets of vibration motors are installed at the bottom end of the screening plate. Eccentric blocks are installed at the output ends of the two vibration motors correspondingly, and guide plates are installed on the two sides of the front end of the screen plate correspondingly. A side baffle is installed outside a sieve plate, two sets of guide plates are installed on the sieve plate, black tea on the sieve plate can be effectively prevented from falling off, then tea residues are discharged to a second collecting frame through the sieve plate, the tea residues are discharged into a first collecting frame through the second collecting frame, and screened and filtered tea leaves enter the second collecting frame along the two sets of guide plates; and thus, the tea leaves and the tea residues are conveniently and quickly separated and synchronously collected, the convenience of the device in use is improved, and the collection difficulty is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of black tea production, in particular to a screening device for black tea fermentation. Background Art

[0002] Black tea is the young leaves or buds of the Camellia plant of the Theaceae family. Black tea does not grow naturally, but was made on the basis of green tea in the late Ming and early Qing dynasties. It is made from suitable new buds and leaves of tea trees, and is refined through a series of processes such as withering, rolling (cutting), fermentation, and drying. After fermentation, the black tea leaves need to be sieved to separate the tea leaves from the tea residue. The existing sieve devices for black tea fermentation can basically meet daily use needs, but there are still some shortcomings that need to be improved.

[0003] However, in actual use, the sieving device for black tea fermentation widely used on the market not only requires the staff to add black tea leaves into the sieve, but also generates vibration force through the vibration motor to sieve the tea leaves on the sieve. In the process of shaking the sieve, a large amount of tea leaves are easy to fall from the edge of the sieve, increasing the difficulty of collection. Therefore, we propose a sieving device for black tea fermentation to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a screening device for black tea fermentation to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening device for black tea fermentation, comprising a base, a control switch, a support frame and a sieve plate, a control switch is installed at the rear end of the base, the top of the base is connected to the sieve plate through the support frame, the side ends of the sieve plate are fixed with side baffles, two groups of vibration motors are installed at the bottom end of the sieve plate, eccentric blocks are installed on the output ends of the two groups of vibration motors, guide plates are installed on both sides of the front end of the sieve plate, a bottom plate is installed at the bottom middle end of the sieve plate, a positioning seat is installed at the middle of the top end of the base, a second collecting frame and a first collecting frame are respectively arranged at the front and rear ends of the positioning seat, a pull handle is installed on the outside of the second collecting frame and the first collecting frame, and a locking assembly is arranged on the positioning seat.

[0006] As a further preferred embodiment of the present technical solution, the locking assembly includes a guide slot, a guide slider, a connecting rod, a second handle, a side rod, a positioning block, a positioning slot and a return spring. A guide slot is provided on the left side of the positioning seat, a guide slider is slidably connected in the guide slot, and the left side of the guide slider is connected to the second handle through a connecting rod. Side rods are installed at both ends of the front end of the guide slider, and positioning blocks are installed at the ends of the two groups of side rods. Positioning slots are provided on the left sides of the second collection frame and the first collection frame, and the ends of the two groups of positioning blocks can be inserted into the positioning slots, and return springs are wound around the outside of the connecting rods.

[0007] As a further preferred embodiment of the present technical solution, the sieve plate is designed to be inclined.

[0008] As a further preferred embodiment of the present technical solution, the two groups of guide plates are designed in an inverted "eight" shape, and the surfaces of the two groups of guide plates are polished.

[0009] As a further preferred embodiment of the present technical solution, two ends of the return spring are respectively connected to the outer wall of the guide slider and the inner wall of the guide slot, and the guide slider is elastically connected to the inner wall of the guide slot via the return spring.

[0010] As a further preferred embodiment of the present technical solution, the outer wall of the positioning block is fully fitted with the interior of the positioning groove.

[0011] The utility model provides a screening device for black tea fermentation, which has the following beneficial effects:

[0012] 1. The utility model can effectively prevent the black tea on the sieve plate from falling by installing side baffles on the outside of the sieve plate and two groups of guide plates on the sieve plate, and then allow the sieve plate to discharge the tea residues onto the second collecting frame, and allow the second collecting frame to discharge the tea residues into the first collecting frame, and the sieved tea leaves enter the second collecting frame along the two groups of guide plates, so as to facilitate rapid separation of tea leaves and tea residues and collect them simultaneously, effectively reducing the difficulty of collection and improving the convenience of using the device.

[0013] 2. The utility model installs a laterally movable guide slider on the left end of the positioning seat. When the first collection frame and the second collection frame are inserted into the top of the base, the return spring can release the elastic force to push the guide slider to move to the right end, so that the two sets of side rods can drive the positioning blocks thereon to quickly insert into the positioning grooves on the first collection frame and the second collection frame under the action of the guide slider, thereby quickly forming an active limit for the first collection frame and the second collection frame, preventing the first collection frame and the second collection frame from accidentally displacing, and improving the stability of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0016] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0017] Figure 4 For the utility model Figure 3 A is an enlarged structural diagram of FIG.

[0018] In the figure: 1. base; 2. control switch; 3. support frame; 4. sieve plate; 5. side baffle; 6. vibration motor; 7. eccentric block; 8. guide plate; 9. bottom plate; 10. positioning seat; 11. first collection frame; 12. second collection frame; 13. pull handle 1; 14. guide slide groove; 15. guide slide block; 16. connecting rod; 17. pull handle 2; 18. side rod; 19. positioning block; 20. positioning groove; 21. reset spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 4 As shown, in the present embodiment, a screening device for black tea fermentation comprises a base 1, a control switch 2, a support frame 3 and a sieve plate 4, the control switch 2 is installed at the rear end of the base 1, the top of the base 1 is connected to the sieve plate 4 through the support frame 3, the side ends of the sieve plate 4 are fixed with side baffles 5, two groups of vibration motors 6 are installed at the bottom end of the sieve plate 4, eccentric blocks 7 are installed on the output ends of the two groups of vibration motors 6, guide plates 8 are installed on both sides of the front end of the sieve plate 4, a bottom plate 9 is installed at the bottom middle end of the sieve plate 4, a positioning seat 10 is installed at the middle of the top end of the base 1, the second collecting frame 12 and the first collecting frame 11 are respectively arranged at the front and rear ends of the positioning seat 10, the second collecting frame 12 and the first collecting frame 11 are both installed with handles 13 on the outside, and a locking assembly is arranged on the positioning seat 10.

[0021] By installing side baffles 5 on the outside of the sieve plate 4 and installing two groups of guide plates 8 on the sieve plate 4, the black tea on the sieve plate 4 can be effectively prevented from falling off, and then the two groups of vibration motors 6 are started to vibrate the sieve plate 4, so that the sieve plate 4 can discharge the tea residues onto the second collecting frame 12, and the second collecting frame 12 can discharge the tea residues into the first collecting frame 11, and the sieved tea leaves will enter the second collecting frame 12 along the two groups of guide plates 8, so as to facilitate the rapid separation of tea leaves and tea residues and collect them simultaneously, effectively reducing the difficulty of collection and improving the convenience of using the device.

[0022] In other embodiments, the locking assembly includes a guide slot 14, a guide slider 15, a connecting rod 16, a second handle 17, a side rod 18, a positioning block 19, a positioning slot 20 and a return spring 21. The positioning seat 10 is provided with a guide slot 14 on the left side, the guide slider 15 is slidably connected in the guide slot 14, the left side of the guide slider 15 is connected to the second handle 17 through the connecting rod 16, the front ends of the guide slider 15 are both equipped with side rods 18, the ends of the two groups of side rods 18 are both equipped with positioning blocks 19, the second collection frame 12 and the first collection frame 11 are both provided with positioning slots 20 on the left side, the ends of the two groups of positioning blocks 19 can be inserted into the positioning slots 20, and the outside of the connecting rod 16 is wound with a return spring 21;

[0023] By installing a laterally movable guide slider 15 on the left end of the positioning seat 10, when the first collection frame 11 and the second collection frame 12 need to be fixed, first pull the handle 17 to the left to allow the guide slider 15 to drive the two groups of side rods 18 to move to the left along the guide slide groove 14, and allow the guide slider 15 to squeeze the return spring 21 outside the connecting rod 16 to allow the return spring 21 to contract and accumulate force, and then the first collection frame 11 and the second collection frame 12 can be inserted into the top of the base 1, and then the tension on the handle 17 is released to allow the return spring 21 to release its elastic force to push the guide slider 15 to move to the right end, and allow the two groups of side rods 18 to drive the positioning blocks 19 thereon under the action of the guide slider 15 to quickly insert into the positioning grooves 20 on the first collection frame 11 and the second collection frame 12, thereby quickly forming an active limit for the first collection frame 11 and the second collection frame 12 to prevent the first collection frame 11 and the second collection frame 12 from accidentally displacing, thereby improving the stability of the device during use.

[0024] In other embodiments, the sieve plate 4 is designed to be inclined;

[0025] With this design, the black tea on the sieve plate 4 can smoothly enter the second collecting frame 12 during vibration, thereby preventing the black tea from being retained on the sieve plate 4 .

[0026] In other embodiments, the two sets of guide plates 8 are designed in an inverted "eight" shape, and the surfaces of the two sets of guide plates 8 are polished;

[0027] Through this design, the two sets of guide plates 8 can guide the black tea on the sieve plate 4 into the second collecting frame 12, while reducing the friction between the surfaces of the two sets of guide plates 8 and the black tea.

[0028] In other embodiments, the two ends of the return spring 21 are respectively connected to the outer wall of the guide slider 15 and the inner wall of the guide slot 14, and the guide slider 15 is elastically connected to the inner wall of the guide slot 14 through the return spring 21;

[0029] With this design, the return spring 21 applies an elastic force toward the right to the guide slider 15 , so that the guide slider 15 drives the positioning blocks 19 on the two sets of side rods 18 to quickly enter the positioning grooves 20 .

[0030] In other embodiments, the outer wall of the positioning block 19 is fully fitted with the interior of the positioning groove 20;

[0031] With this design, when the positioning block 19 is inserted into the positioning groove 20 on the first collecting frame 11 or the second collecting frame 12, it can effectively prevent the first collecting frame 11 or the second collecting frame 12 from shaking, thereby improving the stability of the device during use.

[0032] The electrical components mentioned in this article are all connected to an external main controller and industrial power supply, and the main controller can be a conventional known device for control such as a computer.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening device for black tea fermentation, comprising a base (1), a control switch (2), a support frame (3) and a screen plate (4), wherein the control switch (2) is installed at the rear end of the base (1), and the top end of the base (1) is connected to the screen plate (4) via the support frame (3), characterized in that: The side ends of the sieve plate (4) are fixed with side baffles (5), the bottom end of the sieve plate (4) is installed with two groups of vibration motors (6), the output ends of the two groups of vibration motors (6) are installed with eccentric blocks (7), the front ends of the sieve plate (4) are installed with guide plates (8), the bottom end of the middle part of the sieve plate (4) is installed with a bottom plate (9), the middle part of the top of the base (1) is installed with a positioning seat (10), the front and rear ends of the positioning seat (10) are respectively provided with a second collection frame (12) and a first collection frame (11), the second collection frame (12) and the first collection frame (11) are both installed with a pull handle (13) on the outside, and a locking component is provided on the positioning seat (10).

2. A screening device for black tea fermentation according to claim 1, characterized in that: The locking assembly comprises a guide slot (14), a guide slider (15), a connecting rod (16), a second handle (17), a side rod (18), a positioning block (19), a positioning slot (20) and a return spring (21). The positioning seat (10) is provided with a guide slot (14) on the left side, the guide slot (14) is slidably connected with the guide slider (15), the left side of the guide slider (15) is connected with the second handle (17) via the connecting rod (16), the front ends of the guide slider (15) are both provided with side rods (18), the ends of the two groups of the side rods (18) are both provided with positioning blocks (19), the second collection frame (12) and the first collection frame (11) are both provided with positioning slots (20) on the left side, the ends of the two groups of the positioning blocks (19) can be inserted into the positioning slots (20), and the outside of the connecting rod (16) is wound with a return spring (21).

3. The screening device for black tea fermentation according to claim 1, characterized in that: The sieve plate (4) is designed to be inclined.

4. The screening device for black tea fermentation according to claim 1, characterized in that: The two sets of guide plates (8) are designed in the shape of an inverted "eight", and the surfaces of the two sets of guide plates (8) are polished.

5. The screening device for black tea fermentation according to claim 2, characterized in that: The two ends of the return spring (21) are respectively connected to the outer wall of the guide slide block (15) and the inner wall of the guide slide groove (14), and the guide slide block (15) is elastically connected to the inner wall of the guide slide groove (14) via the return spring (21).

6. A screening device for black tea fermentation according to claim 2, characterized in that: The outer wall of the positioning block (19) is fully fitted to the interior of the positioning groove (20).

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