Winnowing machine for gradually separating tea impurities

Abstract

The utility model discloses a winnowing machine capable of gradually separating tea impurities. The winnowing machine comprises a machine body, an automatic feeding system, a discharging system, a winnowing system, a collecting system and a controller. The stirring rod, the spiral blade and the flow blocking rod are arranged respectively, discharged tea leaves are stirred and stirred respectively, especially adhered tea leaves or tea leaves which are affected with damp and caked are scattered and dispersed, so that impurities in the adhered tea leaves or tea leaves which are affected with damp and caked are released; and successive separation is carried out under the combined action of the first filter screen plate, the second filter screen plate and the fan. The tea leaf impurity separation device solves the problem that impurities in tea leaves which are adhered or blocked due to damp cannot be separated, realizes successive separation of the tea leaf impurities, and thoroughly cleans the tea leaf impurities.

Description

Technical Field

[0001] This utility model relates to the technical field of tea air separators, specifically an air separator for the sequential separation of tea impurities. Background Technology

[0002] Because tea is a beverage brewed directly with boiling water, its hygiene requirements are exceptionally stringent. Therefore, the screening of finished tea leaves is a crucial step in the tea processing, primarily aimed at separating tea powder, dust, and other impurities from the finished product. Traditionally, screening is done manually, which is not only inefficient but also unhygienic, resulting in lower quality tea.

[0003] For example, Chinese invention patent CN221361102U, published on July 19, 2024, discloses a tea leaf air separator. A spring is fixedly connected between the bottom surface of the slider and the bottom surface of the sliding groove. A vibrating rod is fixedly connected to the top surface of the slider, and a filter screen is fixedly connected to the top surface of the vibrating rod. A filter screen is fixedly connected to the inner wall of the filter screen. A fixing plate is fixedly connected to the front of the outer casing, and a fan is fixedly connected to the top surface of the fixing plate. The air outlet at the back of the fan penetrates the front outer wall of the outer casing. The advantages of this invention are: the filter screen vibrates continuously, thus separating broken tea leaves and impurities smaller than normal tea leaves. Qualified tea leaves and impurities of the same volume as tea leaves fall from the left side of the filter screen. By activating the fan, tea leaves and impurities of similar volume but different density are blown to different distances, thereby separating tea leaves and impurities of the same volume as tea leaves, achieving the beneficial effect of improving tea leaf separation efficiency.

[0004] As can be seen from the above patents, the tea air separator can screen and separate tea leaves and impurities, but it cannot separate impurities that are stuck together or clumped together due to moisture. Therefore, this utility model provides an air separator that separates tea impurities step by step to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an air separator for the sequential separation of tea impurities.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wind separator for sequentially separating impurities in tea leaves includes a body, an automatic feeding system, a discharging system, a wind separation system, a collection system, and a controller. The automatic feeding system is located on the left side of the body, and the discharging system is located above and below the top left side of the body and below the top of the automatic feeding system. The discharging system includes a discharging cylinder, a stirring shaft, a motor, stirring rods, spiral blades, and baffle rods. The discharging cylinder penetrates the top of the body and extends into the body. The stirring shaft is located at the central axis of the discharging cylinder. The motor is located at the top of the body. The top of the stirring shaft is connected to the output end of the motor via a belt. Several stirring rods and spiral blades are arranged sequentially from top to bottom on the stirring shaft, and several baffle rods are arranged below the spiral blades.

[0008] Preferably, the air separation system includes a fan, a first filter plate, a second filter plate, a third filter plate, and a baffle plate. The fan is located at the center of the bottom of the machine body, the first filter plate is located below the baffle bar, the second filter plate is located above the fan, the third filter plate is located at the top right side of the machine body, and the baffle plate is located directly above the second filter plate and directly to the left of the third filter plate.

[0009] Preferably, the collection system includes a first collection box, a second collection box, and a third collection box. The first collection box is located directly below the first filter screen plate. The second collection box is connected to the bottom end of the second filter screen plate and is located to the side and below the second filter screen plate. The third collection box is located directly above the second collection box and directly below the third filter screen plate.

[0010] Preferably, the controller is located on the left outer wall of the machine body, and the controller is electrically connected to the automatic feeding system, the motor and the fan respectively.

[0011] Preferably, both ends of the stirring rod and the edge of the spiral blade are close to the inner wall of the feeding cylinder, and the baffle rods are distributed in multiple layers, with the lower baffle rods directly opposite the gap between the upper baffle rods.

[0012] Preferably, the first filter plate and the second filter plate are inclined at an angle of 5 to 10 degrees to the horizontal direction.

[0013] Preferably, the wind deflector has an arc-shaped structure, with the inner ends of the arc facing the second filter plate and the third filter plate, respectively.

[0014] The beneficial effects of this utility model are:

[0015] This system is equipped with stirring rods, spiral blades, and baffle rods to stir and agitate the fed tea leaves, especially breaking up and dispersing clumped or damp tea leaves. This releases impurities from the clumped or damp tea leaves, which are then separated step-by-step by the combined action of the first and second filter plates and the blower. This application solves the problem of the inability to separate impurities from clumped or damp tea leaves, achieving step-by-step separation of impurities and thoroughly cleaning the tea leaves. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the feeding system of this utility model;

[0020] The diagram shows: 1. Machine body; 2. Automatic feeding system; 3. Discharging system; 31. Discharging cylinder; 32. Stirring shaft; 33. Motor; 34. Stirring rod; 35. Spiral blade; 36. Baffle rod; 4. Air separation system; 41. Fan; 42. First filter screen; 43. Second filter screen; 44. Third filter screen; 45. Baffle plate; 5. Collection system; 51. First collection box; 52. Second collection box; 53. Third collection box; 6. Controller. 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, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically 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, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0024] It should be noted that similar labels and letters are likely to represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," 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, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Reference Figure 1-2The present invention discloses a tea impurity separation air separator, which includes a machine body 1, an automatic feeding system 2, a feeding system 3, an air separation system 4, a collection system 5, and a controller 6. An automatic feeding system 2 for conveying tea leaves is set on the left side of the machine body 1. A feeding system 3 for dispersing and breaking up the tea leaves is set below the top of the automatic feeding system 2. The feeding system 3 includes a feeding cylinder 31, a stirring shaft 32, a motor 33, stirring rods 34, spiral blades 35, and baffle rods 36. The feeding cylinder 31 for dispersing tea leaves is set at the top of the machine body 1. The stirring shaft 32 is set at the central axis of the feeding cylinder 31. The stirring shaft 32 is connected to and driven by the output end of the motor 33 set at the top of the machine body 1 via a belt. Several stirring rods 34 and spiral blades 35 are arranged sequentially from top to bottom on the stirring shaft 32. Several baffle rods 36 are set below the spiral blades 35. The stirring rods 34, spiral blades 35, and baffle rods 36 work together to stir and agitate the tea leaves, especially to break up and disperse the tea leaves that are stuck together or have become damp and clumped, so that the impurities in the tea leaves that are stuck together or have become damp and clumped can be released.

[0028] The air separation system 4 includes a fan 41, a first filter plate 42, a second filter plate 43, a third filter plate 44, and a baffle plate 45. The fan 41 is located at the center of the bottom of the machine body 1. The first filter plate 42 is located below the baffle rod 36. The first filter plate 42, which is inclined at an angle of 5-10° to the horizontal, is used for the first filtration of dispersed tea impurities. The second filter plate 43 is located above the fan 41. The second filter plate 43, which is inclined at an angle of 5-10° to the horizontal, is used for the second filtration of dispersed tea impurities. The third filter plate 44 is located at the top right side of the machine body 1 for airflow discharge and blocking the separated tea leaves. The arc-shaped baffle plate 45 is located directly above the second filter plate 43 and directly to the left of the third filter plate 44. The inner end of the arc of the baffle plate 45 faces the second filter plate 43 and the third filter plate 44, respectively. The baffle plate 45 is used to turn the upward airflow into a rightward airflow, thereby redirecting and buffering the airflow.

[0029] The collection system 5 includes a first collection box 51, a second collection box 52, and a third collection box 53. The first collection box 51 is located directly below the first filter screen 42 to collect tea impurities produced during the first filtration. The second collection box 52 is located to the side below the second filter screen 43 to collect tea impurities produced during the second filtration. The third collection box 53 is located directly below the third filter screen 44 to collect the tea leaves after separation. The controller 6 is located on the left outer wall of the machine body 1. The controller 6 is electrically connected to the automatic feeding system 2, the motor 33, and the fan 41, and is used to control the speed of tea leaf conveying, the stirring speed, and the airflow speed, respectively.

[0030] In an optional embodiment, both ends of the stirring rod 34 and the edge of the spiral blade 35 are close to the inner wall of the feeding cylinder 31 to facilitate thorough mixing and dispersion; the baffle rods 36 are distributed in multiple layers, with the lower baffle rods 36 facing the gap between the upper baffle rods 36, which on the one hand buffers the feeding of tea leaves, and on the other hand makes the tea leaves fall more evenly.

[0031] The working process for this application is as follows:

[0032] Turn on controller 6, and sequentially start automatic feeding system 2, motor 33, and fan 41. Automatic feeding system 2 first conveys tea leaves into feeding cylinder 31. Motor 33 drives stirring shaft 32 via belt, which in turn drives stirring rod 34 and spiral blade 35 to rotate. Stirring rod 34 and spiral blade 35 stir, break up, and disperse the falling tea leaves, especially the sticky or damp tea leaves, so that impurities in the sticky or damp tea leaves are released. Then, after passing through multiple layers of baffle rods 36 for buffering and homogenization, the tea leaves and tea impurities fall evenly onto the first filter screen plate 42 for the first filter. In the second filtration, tea impurities fall into the first collection box 51. Unfiltered tea impurities and tea leaves slide down the inclined first filter plate 42 onto the second filter plate 43, where they are blown upwards by the airflow generated by the fan 41. Impurities fall to the edge of the inclined second filter plate 43 and into the second collection box 52. The separated tea leaves fall into the third collection box 53 through the right-hand airflow changed by the baffle plate 45. The third filter plate 44 also prevents the separated tea leaves from falling into the third collection box 53. The airflow is discharged through the third filter plate 44, and the separation process of tea leaves and tea impurities is completed.

[0033] Of course, the embodiments described in this specific implementation are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A tea leaf impurity step-by-step separation winnower, comprising a machine body (1), an automatic feeding system (2), a discharging system (3), a winnowing system (4), a collecting system (5) and a controller (6); the automatic feeding system (2) is arranged on the left side of the machine body (1), the discharging system (3) is arranged above and below the top left side of the machine body (1) and below the top end of the automatic feeding system (2), characterized in that: The discharging system (3) comprises a discharging cylinder (31), a stirring shaft (32), a motor (33), stirring rods (34), helical blades (35) and flow blocking rods (36), the discharging cylinder (31) penetrates the top of the machine body (1) and extends into the machine body (1), the stirring shaft (32) is arranged at the center axis of the discharging cylinder (31), the motor (33) is arranged at the top of the machine body (1), the top of the stirring shaft (32) is connected with the output end of the motor (33) through a belt, a plurality of stirring rods (34) and helical blades (35) are sequentially arranged on the stirring shaft (32) from top to bottom, and a plurality of flow blocking rods (36) are arranged below the helical blades (35).

2. A tea impurity stepwise separating winnower according to claim 1, characterized in that: The winnowing system (4) comprises a fan (41), a first filter screen plate (42), a second filter screen plate (43), a third filter screen plate (44) and a wind baffle (45), the fan (41) is arranged at the center of the bottom of the machine body (1), the first filter screen plate (42) is arranged below the flow blocking rods (36), the second filter screen plate (43) is arranged above the fan (41), the third filter screen plate (44) is arranged at the top right side of the machine body (1), and the wind baffle (45) is arranged directly above the second filter screen plate (43) and directly left of the third filter screen plate (44).

3. A tea impurity stepwise separating winnower according to claim 2, characterized in that: The collecting system (5) comprises a first collecting box (51), a second collecting box (52) and a third collecting box (53), the first collecting box (51) is arranged directly below the first filter screen plate (42), the second collecting box (52) is connected to the bottom end of the second filter screen plate (43) and arranged below the side of the second filter screen plate (43), and the third collecting box (53) is arranged directly above the second collecting box (52) and directly below the third filter screen plate (44).

4. A tea impurity stepwise separating winnower according to claim 2, characterized in that: The controller (6) is arranged on the left outer wall of the machine body (1), and the controller (6) is electrically connected with the automatic feeding system (2), the motor (33) and the fan (41) respectively.

5. A tea impurity stepwise separating winnower according to claim 1, characterized in that: The two ends of the stirring rods (34) and the edges of the helical blades (35) are close to the inner wall of the discharging cylinder (31), the flow blocking rods (36) are arranged in multiple layers, and the lower flow blocking rods (36) are directly opposite the gap between the upper flow blocking rods (36).

6. A tea impurity stepwise separating winnower according to claim 2, characterized in that: The first filter screen plate (42) and the second filter screen plate (43) are inclined at an angle of 5-10º with the horizontal direction.

7. A tea impurity stepwise separating winnower according to claim 2, characterized in that: The wind baffle (45) is in a circular arc structure, and the inner ends of the circular arc of the wind baffle (45) respectively face the second filter screen plate (43) and the third filter screen plate (44).

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