Outlet tea screening and purifying device

Abstract

The utility model discloses an outlet tea screening and purifying device which comprises a screening device body, a feeding port, a first screen and a second screen, the feeding port is formed in the top of the screening device body, and the first screen and the second screen are sequentially arranged in the center of the interior of the screening device body through supporting springs. A dust collecting box is arranged at the bottom of the screening device body, the two ends of the top of the dust collecting box communicate with the screening device body through fans, and a filter screen is arranged in the center of the interior of the dust collecting box. According to the tea leaf screening device, the screening device body, the feeding port, the first screen, the second screen, the rotary driving mechanism, the cam, the driving rod, the dust collecting box, the air inlet, the draught fan, the blades and the filter screen are installed, the tea leaf screening device can play a role in collecting and purifying powder while screening tea leaves, and the tea leaf processing environment is prevented from being polluted; when the fan rotates, surrounding airflow can be generated, and noise can be reduced.

Description

Technical Field

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

[0002] Since impurities such as powder and broken tea will be generated inside the tea during the production and processing process, which will affect the cleanliness and quality of the tea. In order to make the tea meet the export standards, it is necessary to screen the tea to separate the powder, broken tea and other impurities in the tea. Generally, the screening device uses the difference in the aperture of the sieve mesh to separate the powder and broken tea in the tea. However, after the powder is separated, it is not conducive to purification treatment and is likely to pollute the processing environment. Content of the Utility Model

[0003] The purpose of the utility model is to provide a screening and purification device for exported tea to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A screening and purification device for exported tea, including a main body of the screening device, a feed inlet, a first sieve mesh and a second sieve mesh. The feed inlet is arranged at the top of the main body of the screening device, and the first sieve mesh and the second sieve mesh are sequentially arranged at the central position inside the main body of the screening device through support springs. A rotary drive mechanism is arranged at the bottom end inside the main body of the screening device through a bracket, and a cam is arranged at the output end of the rotary drive mechanism through a roller shaft. A drive rod is arranged above the cam, and the top end of the drive rod passes through and connects the second sieve mesh and the first sieve mesh. A dust collection box is arranged at the bottom of the main body of the screening device, and both ends of the top of the dust collection box are connected to the main body of the screening device through a blower, and a filter screen is arranged at the central position inside the dust collection box.

[0005] Preferably, support plates are arranged on both sides of the top of the main body of the screening device, and blocking members are evenly arranged on one side of each support plate through return springs.

[0006] Preferably, two groups of air inlets are arranged at the bottom end inside the main body of the screening device, and the bottom ends of the air inlets are all connected to the blower.

[0007] Preferably, both sides of the first sieve mesh and the second sieve mesh are inclined, and discharge ports are arranged on the main body of the screening device on both sides of the first sieve mesh and the second sieve mesh.

[0008] Preferably, slide rails are arranged on both sides of the filter screen, and sliding grooves matching the slide rails are arranged on both sides inside the dust collection box.

[0009] Preferably, blades are evenly distributed on the outside of the blower, and three groups of ribs are arranged on each blade.

[0010] Preferably, cover plates are rotatably connected to the main body of the screening device on one side of the discharge port through rotating shafts, and clamping blocks are arranged at one ends of one sides of the cover plates, and clamping grooves matching the clamping blocks are formed in the outer sides of the main body of the screening device.

[0011] Preferably, the material blocking members are inserted into the interior of the feed port, and an electromagnet and a magnetic suction groove are respectively arranged on the material blocking members.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The tea screening and purification device at the outlet is provided with a main body of the screening device, a feed port, a first screen, a second screen, a rotation driving mechanism, a cam, a driving rod, a dust collection box, an air inlet, a fan, blades and a filter screen. Tea is introduced into the main body of the screening device through the feed port and first falls on the first screen. The rotation driving mechanism drives the cam to rotate, so that the cam continuously generates an upward thrust on the driving rod, thereby causing the first screen and the second screen to vibrate simultaneously. Broken tea and powder fall through the sieve holes on the first screen onto the second screen. The tea meeting the export standard remains on the top of the first screen, while the broken tea remains above the second screen, and the powder falls through the sieve holes on the second screen to the bottom end inside the main body of the screening device. Due to the action of the fan, the blades rotate to generate a suction airflow at the bottom, so that the powder is sucked into the dust collection box, and the dust-containing gas is purified and filtered by the filter screen and then discharged, which is beneficial to collecting and purifying the powder while screening the tea, preventing pollution to the tea processing environment. Three groups of ribs are arranged on the blades, which can generate a circumferential airflow when the fan rotates, and is beneficial to reducing noise. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a front view sectional structure diagram of the present utility model;

[0015] Figure 2 It is of the present utility model Figure 1 The enlarged structure diagram at A in;

[0016] Figure 3 It is of the present utility model Figure 1 The enlarged structure diagram at B in;

[0017] Figure 4 It is a sectional structure diagram of the feed port of the present utility model;

[0018] Figure 5This is a schematic top view structure diagram of the fan of the present utility model.

[0019] In the figure: 1. Main body of the screening device; 2. Feed inlet; 3. Support plate; 4. First screen; 5. Air inlet; 6. Slide rail; 7. Dust collection box; 8. Filter screen; 9. Fan; 10. Second screen; 11. Driving rod; 12. Cover plate; 13. Discharge outlet; 14. Support spring; 15. Card slot; 16. Card block; 17. Cam; 18. Rotating drive mechanism; 19. Material blocking member; 20. Electromagnet; 21. Magnetic attraction groove; 22. Return spring; 23. Blade; 24. Rib. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. 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.

[0021] Please refer to Figures 1-5 , an embodiment provided by the present utility model: an export tea screening and purification device, including a main body 1 of the screening device, a feed inlet 2, a first screen 4 and a second screen 10. A feed inlet 2 is provided at the top of the main body 1 of the screening device, and a first screen 4 and a second screen 10 are sequentially arranged at the central position inside the main body 1 of the screening device through support springs 14;

[0022] A rotating drive mechanism 18 is provided at the bottom end inside the main body 1 of the screening device through a bracket, and a cam 17 is provided at the output end of the rotating drive mechanism 18 through a roller. A driving rod 11 is arranged above the cam 17, and the top end of the driving rod 11 passes through and connects the second screen 10 and the first screen 4;

[0023] Tea is introduced into the main body 1 of the screening device through the feed inlet 2, first falling on the first screen 4. The rotating drive mechanism 18 drives the cam 17 to rotate, so that the cam 17 continuously generates an upward thrust on the driving rod 11, and the first screen 4 and the second screen 10 are simultaneously shaken up and down in cooperation with the reset characteristic of the support spring 14;

[0024] Broken tea and powder fall through the sieve holes on the first screen 4 onto the second screen 10. The tea meeting the export standard remains on the top of the first screen 4, while the broken tea remains above the second screen 10, and the powder falls through the sieve holes on the second screen 10 to the bottom end inside the main body 1 of the screening device;

[0025] A dust collection box 7 is provided at the bottom of the main body 1 of the screening device, and both ends of the top of the dust collection box 7 are connected to the main body 1 of the screening device through a fan 9. A filter screen 8 is provided at the central position inside the dust collection box 7;

[0026] At the bottom inside the main body 1 of the screening device, there are 2 groups of air inlets 5, and the bottoms of the air inlets 5 are all communicated with the fan 9;

[0027] The outer side of the fan 9 is evenly distributed with blades 23. When the fan 9 operates, it drives the blades 23 to rotate to generate an inhalation airflow at the bottom, so that the powder is inhaled into the dust collection box 7. The dust-containing gas is purified and filtered by the filter screen 8 and then discharged, which is beneficial to collecting and purifying the powder while screening the tea leaves, and preventing the pollution of the tea processing environment;

[0028] There are 3 groups of ribs 24 on each of the blades 23, which can generate a circumferential airflow when the fan 9 rotates and reduce noise;

[0029] Both sides of the filter screen 8 are provided with slide rails 6, and both sides inside the dust collection box 7 are provided with chutes matching the slide rails 6, which is convenient for the disassembly and replacement of the filter screen 8;

[0030] Both sides of the first sieve 4 and the second sieve 10 are inclined, and discharge ports 13 are provided on the main body 1 of the screening device on both sides of the first sieve 4 and the second sieve 10;

[0031] The tea leaves meeting the export standard and the broken tea are respectively led out through the discharge ports 13 on both sides of the first sieve 4 and the second sieve 10;

[0032] On the main body 1 of the screening device on one side of the discharge port 13, there is a cover plate 12 rotatably connected through a rotating shaft, and at one end on one side of the cover plate 12, there is a clamping block 16. On the outside of the main body 1 of the screening device, there are clamping grooves 15 matching the clamping blocks 16, which is convenient for opening and closing the discharge port 13;

[0033] On both sides of the top of the main body 1 of the screening device, there are support plates 3, and on one side of the support plates 3, there are material blocking members 19 evenly arranged through return springs 22;

[0034] The material blocking members 19 are inserted into the inside of the feed inlet 2, and an electromagnet 20 and a magnetic suction groove 21 are respectively arranged on the material blocking members 19;

[0035] When it is necessary to suspend the introduction of tea leaves, the electromagnet 20 on the right material blocking member 19 is energized to generate suction force, so that it is attracted and connected to the left material blocking member 19, and then the feed inlet 2 is blocked;

[0036] After the electromagnet 20 is powered off, the material blocking member 19 moves back under the action of the return spring 22 to open the feed inlet 2. In this way, the feeding gap of the tea leaves can be controlled in a cycle, ensuring that the tea leaves are evenly distributed on the first sieve 4 and the second sieve 10, avoiding local accumulation and improving the screening efficiency;

[0037] The specific model specifications of the rotation drive mechanism 18 and the electromagnet 20 need to be determined by selection and calculation according to the specification parameters of the device. The selection and calculation method is the prior art, so it will not be elaborated in detail.

[0038] Working principle: When the embodiment of the present application is in use, tea leaves are introduced into the main body 1 of the screening device through the feed inlet 2 and first fall on the first screen 4. The rotary drive mechanism 18 drives the cam 17 to rotate, so that the cam 17 continuously generates an upward thrust on the drive rod 11. Combining with the reset characteristic of the support spring 14, the first screen 4 and the second screen 10 vibrate up and down simultaneously. Broken tea and powder fall through the sieve holes on the first screen 4 onto the second screen 10. Tea leaves meeting the export standard remain at the top of the first screen 4, while broken tea remains above the second screen 10, and the powder falls through the sieve holes on the second screen 10 to the bottom end inside the main body 1 of the screening device. The fan 9 operates to drive the blades 23 to rotate to generate an inhalation airflow at the bottom, so that the powder is inhaled into the dust collection box 7. The dust-containing gas is purified and filtered by the filter screen 8 and then discharged, which helps to collect and purify the powder while screening the tea leaves, preventing the pollution of the tea leaf processing environment. Three groups of ribs 24 are arranged on the blades 23, which can generate a circumferential airflow when the fan 9 rotates, reducing noise. Tea leaves meeting the export standard and broken tea are respectively led out through the discharge ports 13 on both sides of the first screen 4 and the second screen 10. When it is necessary to pause the introduction of tea leaves, the electromagnet 20 on the right blocking member 19 is energized to generate suction, so that it is attracted and connected to the left blocking member 19, thereby blocking the feed inlet 2. After the electromagnet 20 is powered off, the blocking member 19 moves back under the action of the return spring 22 to open the feed inlet 2. Such a cycle can control the feeding gap of the tea leaves, ensure the uniform distribution of the tea leaves on the first screen 4 and the second screen 10, avoid local accumulation, and improve the screening efficiency.

[0039] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0042] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Export tea screening and purification device, characterized in that: The invention comprises a screening device body (1), a feed port (2), a first screen (4) and a second screen (10), wherein the top of the screening device body (1) is provided with a feed port (2), and the first screen (4) and the second screen (10) are sequentially provided at a central position inside the screening device body (1) via a support spring (14), a rotating drive mechanism (18) is provided at the bottom end inside the screening device body (1) via a bracket, and a cam (17) is provided at the output end of the rotating drive mechanism (18) via a roller, a driving rod (11) is provided above the cam (17), and the top end of the driving rod (11) passes through and connects the second screen (10) and the first screen (4), a dust box (7) is provided at the bottom of the screening device body (1), and both ends of the top of the dust box (7) are connected to the screening device body (1) via a fan (9), and a filter (8) is provided at a central position inside the dust box (7).

2. The export tea screening and purification device according to claim 1 is characterized by: Support plates (3) are provided on both sides of the top of the screening device body (1), and a material blocking member (19) is evenly provided on one side of the support plate (3) via a return spring (22).

3. The export tea screening and purification device according to claim 1 is characterized by: Two groups of air inlets (5) are arranged at the bottom of the interior of the screening device body (1), and the bottom ends of the air inlets (5) are both connected to the fan (9).

4. The export tea screening and purification device according to claim 1 is characterized by: Both sides of the first screen (4) and the second screen (10) are inclined, and discharge ports (13) are provided on the screening device body (1) on both sides of the first screen (4) and the second screen (10).

5. The export tea screening and purification device according to claim 1 is characterized by: Slide rails (6) are provided on both sides of the filter screen (8), and slide grooves matching the slide rails (6) are provided on both sides of the interior of the dust collecting box (7).

6. The export tea screening and purification device according to claim 1 is characterized by: Blades (23) are evenly distributed on the outer side of the fan (9), and three groups of ribs (24) are arranged on each of the blades (23).

7. The export tea screening and purification device according to claim 4 is characterized by: A cover plate (12) is rotatably connected to the screening device body (1) on one side of the discharge port (13) via a rotating shaft, and a clamping block (16) is provided at one end of one side of the cover plate (12). A clamping groove (15) matching the clamping block (16) is provided on the outer side of the screening device body (1).

8. The export tea screening and purification device according to claim 2 is characterized by: The material blocking members (19) are all inserted into the interior of the material feed port (2), and the material blocking members (19) are respectively provided with an electromagnet (20) and a magnetic suction groove (21).

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