A multi-stage screening device for raw materials of health tea production

Abstract

This utility model relates to the technical field of health tea production technology, specifically to a multi-stage screening device for raw materials in health tea production. The device includes a first screening barrel, a second screening barrel, and a first support frame. The first screening barrel is fitted inside the second screening barrel, which is placed on the first support frame. Both the first and second screening barrels are placed at an angle. The higher end of the first screening barrel has a feed inlet, and an intermittent feeding mechanism is located above the feed inlet. The first screening barrel is connected to a first motor via bearings. Two slide rails are fitted onto the second screening barrel. The first support frame has multiple rotating wheels that mesh with the slide rails. Both ends of the rotating wheels are connected to a second motor. The independent drive design of the two screening barrels enables fine grading of raw material particle size, improving the screening efficiency and quality of raw materials for health tea production.

Description

Technical Field

[0001] This utility model relates to the technical field of health tea production technology, specifically to a multi-stage screening device for raw materials in health tea production. Background Technology

[0002] Health-preserving teas are beverages made based on traditional Chinese medicine theory, using a reasonable combination of tea leaves, Chinese medicinal herbs, or natural ingredients such as flowers, herbs, and fruits. They aim to regulate the body and nourish the internal organs to promote health through the properties and effects of these ingredients. Their characteristics include ingredients largely selected from food and medicine homologous materials, offering targeted effects such as clearing heat and reducing inflammation, strengthening the spleen and removing dampness, emphasizing gentle daily conditioning rather than drug treatment.

[0003] When making health-preserving tea, the raw materials need to be screened first to separate out impurities or residues. Existing equipment mostly adopts a fixed-rate screening mode with multi-stage screening frames driven synchronously. This mode is difficult to adapt to the differences in physical properties such as particle size, hardness, and moisture content of different raw materials such as seed-type medicinal materials, petal-type ingredients, and fresh fruit particles. As a result, the bottom fine screen is prone to material accumulation and blockage due to the excessively fast speed of the upper coarse screen. The soft petal and leaf-type raw materials have an increased breakage rate and loss of effective ingredients due to fixed high-speed vibration. Furthermore, raw materials with different densities are prone to confusion in grading due to overlapping screening trajectories, which cannot meet the fine requirements of the formula for the particle size of the raw materials.

[0004] In view of this, the purpose of this utility model is to provide a multi-stage screening device for raw materials in the production of health tea, so as to solve the problem that the existing technology cannot adjust the screening rate of each stage. Utility Model Content

[0005] This utility model is achieved through the following technical solution:

[0006] A multi-stage screening device for raw materials in the production of health-preserving tea is characterized by comprising a first screening barrel, a second screening barrel, and a first support frame. The first screening barrel is fitted inside the second screening barrel, and the second screening barrel is placed on the first support frame. Both the first and second screening barrels are placed at an inclination. The higher end of the first screening barrel is provided with a feed inlet, and an intermittent feeding mechanism is provided above the feed inlet. The other end of the first screening barrel is provided with a first discharge outlet, and the end of the second screening barrel corresponding to the first discharge outlet is provided with a second discharge outlet. The first screening barrel is connected to a first motor via a bearing. Two slide rails are fitted on the second screening barrel, and the first support frame is provided with multiple rotating wheels that mesh with the slide rails. The two ends of the rotating wheels are connected to the second motor.

[0007] Two limiting plates are provided on both sides of the second screening bucket.

[0008] Furthermore, the bottom of the two limiting plates is provided with two downwardly gradually approaching drainage plates.

[0009] Furthermore, a debris collection box is provided below the drainage plate.

[0010] Furthermore, a second support frame is provided below the first motor.

[0011] Furthermore, a third support frame is provided at one end of the second support frame, and a rotating ring that cooperates with the bearing is provided at the top of the third support frame. The rotating ring is fixedly connected to the top of the third support frame, and the end of the bearing away from the first motor is rotatably placed inside the rotating ring.

[0012] The beneficial effects of this utility model are as follows:

[0013] This multi-stage screening equipment for raw materials used in health tea production employs an inclined, nested structure of the first and second screening bins, along with an intermittent feeding mechanism to control the feeding rhythm of raw materials. Based on the physical characteristics of different raw materials such as seed-based medicinal herbs and flower petals, the rotation speed of the two screening bins is adjusted by the first and second motors respectively. The continuous rotation of the first and second screening bins prevents raw material accumulation and blockage, while also reducing the breakage rate of soft raw materials. The equipment, with its limiting plate, diversion plate, and debris collection box, effectively guides the separation and collection of impurities. Furthermore, the independent drive design of the two screening bins precisely adapts to the screening trajectory of different raw materials, achieving fine grading of raw material particle size, meeting the purity requirements of the formula, and improving the screening efficiency and quality of raw materials for health tea production.

[0014] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is the left view of the present invention;

[0017] Figure 3 This is the right view of the present invention;

[0018] Figure 4 This is a side view of the present invention;

[0019] Figure 5 For the present utility model Figure 4 A magnified view of part A in the image.

[0020] In the diagram: 1. First screening bin; 2. Second screening bin; 3. Slide rail; 4. Rotary wheel; 5. Second motor; 6. Feed inlet; 7. Limiting plate; 8. Diverting plate; 9. Debris collection box; 10. First motor; 11. Bearing; 12. First discharge port; 13. Second discharge port; 14. First support frame; 15. Second support frame; 16. Third support frame. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0026] Please see Figure 1-5This utility model provides a technical solution: a multi-stage screening device for raw materials in the production of health tea, including a first screening barrel 1, a second screening barrel 2, and a first support frame 14. The first screening barrel 1 is fitted inside the second screening barrel 2, and the second screening barrel 2 is placed on the first support frame 14. Both the first screening barrel 1 and the second screening barrel 2 are placed at an inclination. The higher end of the first screening barrel 1 is provided with a feed inlet 6, and an intermittent feeding mechanism is provided above the feed inlet 6. The other end of the first screening barrel 1 is provided with a first discharge outlet 12, and the end of the second screening barrel 2 corresponding to the first discharge outlet 12 is provided with a second discharge outlet 13. The first screening barrel 1 is connected to a first motor 10 through a bearing 11. Two slide rails 3 are fitted on the second screening barrel 2. The first support frame 14 is provided with a plurality of rotating wheels 4 that mesh with the slide rails 3, and the two ends of the rotating wheels 4 are connected to a second motor 5.

[0027] The structure of the first screening barrel 1 being fitted inside the second screening barrel 2 and placed at an angle, along with the feed inlet 6, the first discharge outlet 12 and the second discharge outlet 13, enables multi-stage screening of raw materials. The first motor 10 drives the first screening barrel 1 through the bearing 11, and the second motor 5 drives the second screening barrel 2 through the rotating wheel 4 meshing with the slide rail 3. The two independent drives can adjust the screening rate according to the characteristics of the raw materials, avoid material accumulation and clogging of the screen, reduce the breakage of petal-like raw materials, and improve the grading accuracy.

[0028] In this embodiment: two limiting plates 7 are provided on both sides of the second screening bucket 2.

[0029] The limiting plates 7 on both sides of the second screening barrel 2 can restrict the lateral displacement of the material, ensure that the material flows in an orderly manner along the inclined direction, avoid overflowing the screening area, and improve the stability of the screening process and the material utilization rate.

[0030] In this embodiment, the bottom of the two limiting plates 7 is provided with two downwardly gradually approaching diversion plates 8.

[0031] The guide plate 8 at the bottom of the limiting plate 7 gradually narrows downwards, which can gather and guide the impurities falling from the screen to a designated path, preventing the impurities from scattering and accumulating, facilitating subsequent centralized collection, and optimizing the material screening trajectory.

[0032] In this embodiment, a debris collection box 9 is provided below the drainage plate 8.

[0033] The debris collection box 9 below the diversion plate 8 can directly collect impurities, achieving fixed-point collection, avoiding the impact of impurity residue on equipment operation, facilitating regular cleaning, and keeping the screening environment clean.

[0034] In this embodiment, a second support frame 15 is provided below the first motor 10.

[0035] In this embodiment: a third support frame 16 is provided at one end of the second support frame 15. The top end of the third support frame 16 is provided with a rotating ring that cooperates with the bearing 11. The rotating ring is fixedly connected to the top end of the third support frame 16. The end of the bearing 11 away from the first motor 10 is rotatably placed inside the rotating ring.

[0036] Working principle: When the equipment is working, the intermittent feeding mechanism evenly feeds raw materials into the feed inlet 6. The raw materials fall into the inclined first screening barrel 1. The first motor 10 drives the first screening barrel 1 to rotate through the bearing 11, so that the raw materials move towards the first discharge port 12 under the action of centrifugal force and the inclined surface. Larger impurities are intercepted by the screen of the first screening barrel 1, and smaller particles fall into the second screening barrel 2 below through the screen. At the same time, the second motor 5 drives the rotor 4 to rotate, which drives the second screening barrel 2 to rotate through the meshing with the slide rail 3, so that the raw materials falling into the second screening barrel 2 are further screened. Qualified raw materials are discharged from the second discharge port 13, and fine impurities pass through the screen of the second screening barrel 2, are guided by the limiting plate 7, and are collected by the diversion plate 8 before falling into the debris collection box 9. Large particles of impurities in the first screening barrel 1 are finally discharged from the first discharge port 12, realizing multi-stage screening and grading of raw materials. The independent drive of the two screening mechanisms can adjust the running speed according to the characteristics of the raw materials to avoid screen blockage and raw material breakage.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-stage screening device for raw materials in the production of health-preserving tea, characterized in that: The first screening barrel (1), the second screening barrel (2), and the first support frame (14) are included. The first screening barrel (1) is fitted inside the second screening barrel (2). The second screening barrel (2) is placed on the first support frame (14). The first screening barrel (1) and the second screening barrel (2) are both placed at an inclination. The higher end of the first screening barrel (1) is provided with a feed inlet (6). An intermittent feeding mechanism is provided above the feed inlet (6). The other end of the first screening barrel (1) is provided with a first discharge outlet (12). The end of the second screening barrel (2) corresponding to the first discharge outlet (12) is provided with a second discharge outlet (13). The first screening barrel (1) is connected to the first motor (10) through a bearing (11). Two slide rails (3) are fitted on the second screening barrel (2). The first support frame (14) is provided with multiple rotating wheels (4) that mesh with the slide rails (3). The two ends of the rotating wheels (4) are connected to the second motor (5).

2. The multi-stage screening equipment for raw materials in health tea production according to claim 1, characterized in that: The second screening bucket (2) has two limiting plates (7) on both sides.

3. The multi-stage screening equipment for raw materials in health tea production according to claim 2, characterized in that: The bottom of the two limiting plates (7) is provided with two downwardly gradually approaching diversion plates (8).

4. The multi-stage screening equipment for raw materials in health tea production according to claim 3, characterized in that: A debris collection box (9) is provided below the drainage plate (8).

5. The multi-stage screening equipment for raw materials in health tea production according to claim 1, characterized in that: A second support frame (15) is provided below the first motor (10).

6. The multi-stage screening equipment for raw materials in health tea production according to claim 5, characterized in that: A third support frame (16) is provided at one end of the second support frame (15). The top end of the third support frame (16) is provided with a rotating ring that cooperates with the bearing (11). The rotating ring is fixedly connected to the top end of the third support frame (16). The end of the bearing (11) away from the first motor (10) is rotatably placed inside the rotating ring.

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