Screening and winnowing device for black tea processing

Abstract

The utility model relates to the technical field of black tea processing, in particular to a screening and winnowing device for black tea processing, which comprises a box body, a feeding hopper is arranged at the upper end of the box body, a rotating hopper is rotationally installed in the upper end of the box body, grooves are formed in the rotating hopper in an up-down symmetrical mode, the rotating hopper is located at the connecting position of an opening in the lower end of the feeding hopper and the box body, driving assemblies are installed on the front side of the right end of the box body and the front end of the rotating hopper, and a winnowing assembly is installed at the right end of the box body. And the winnowing assembly is connected with the driving assembly. The rotating bucket is driven by the motor, the first synchronous wheel, the second synchronous wheel and the synchronous belt to rotate, black tea poured into the feeding hopper circularly falls into the two sets of grooves through rotation of the rotating bucket, and therefore the black tea in the feeding hopper can quantitatively enter the box body at a constant speed, and the situation that a large number of black tea falls into the box body at the same time to reduce the winnowing effect is avoided; and the feeding uniformity of the black tea leaves is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of black tea processing, in particular to a screening and air separation device used for black tea processing. Background Art

[0002] Black tea is a fully fermented tea. It is made from suitable new leaves of tea trees and is refined through a series of processes such as withering, rolling (cutting), fermentation, and drying. During the processing of black tea, it needs to be air-selected to remove impurities. Air selection is a method of removing impurities with the help of wind power using the difference in suspension speed between materials and impurities. The purpose of air selection is to remove light impurities and dust, and at the same time, it can also remove heavier impurities such as some stones and soil blocks. When the existing air selector is air-selecting black tea, it is not easy to adjust the feed speed. When the feed is too fast, the air selection effect of the black tea is easy to be poor, and the feed is uneven, and the tea leaves are easy to pile up together, affecting the air selection effect. It will take too long to process, which is not convenient for the processing and production of black tea. For this reason, we propose a screening and air selection device for black tea processing to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a screening and air separation device for black tea processing, so as to solve the problems that the existing air separation machine proposed in the above background technology is difficult to adjust the feed speed when air separation is performed on black tea, and when the feed is too fast, the air separation effect of the black tea is poor, and the feed is uneven, and the tea leaves are easily piled up, which affects the air separation effect, takes too long to process, and is not convenient for the processing and production of black tea.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening and air separation device for black tea processing, comprising a box body;

[0005] A feed hopper is provided at the upper end of the box body, a rotating bucket is rotatably installed in the upper end of the box body, grooves are symmetrically opened in the rotating bucket, and the rotating bucket is located at the connection between the lower end opening of the feed hopper and the box body. A driving assembly is installed on the front side of the right end of the box body and the front end of the rotating bucket. The driving assembly includes a motor, which is installed on the front side of the right end of the box body. A first synchronous wheel is rotatably installed in the right end of the box body, and a second synchronous wheel is rotatably installed in the front end of the box body. The second synchronous wheel is fixedly connected to the front end of the rotating bucket, and a synchronous belt is sleeved on the first synchronous wheel and the second synchronous wheel. A wind selection component is installed at the right end of the box, and the wind selection component includes a rotating shaft, which is fixedly installed on the motor output shaft, and the rotating shaft is fixedly connected to the first synchronous wheel. A fan blade is installed at the rear end of the rotating shaft, and a first air duct is installed on the right side of the box. The fan blade is rotatably inserted in the front end of the first air duct. Two groups of second air ducts are installed on the inner wall of the right side of the box. Multiple groups of air nozzles are arranged in an array on the left sides of the two groups of second air ducts. A connecting pipe is arranged between the two groups of second air ducts. The two groups of second air ducts are connected to the first air duct, and the wind selection component is connected to the driving component.

[0006] Preferably, the outer wall diameter of the first synchronous wheel is larger than the outer wall diameter of the second synchronous wheel, and the outer wall diameter of the first synchronous wheel is ten times the outer wall diameter of the second synchronous wheel.

[0007] Preferably, a collecting bag is provided at the left end of the box body, the collecting bag is kept parallel to the two groups of second air ducts, and the right end of the collecting bag is made of cloth.

[0008] Preferably, mesh panels are symmetrically installed at the lower end of the box body, partition panels are fixedly installed at the lower ends of two groups of mesh panels, the two groups of partition panels are fixedly connected to the bottom of the box body, and a cover plate is rotatably installed at the lower end of the box body.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model drives the rotating bucket to rotate through the motor, the first synchronous wheel, the second synchronous wheel and the synchronous belt. The rotation of the rotating bucket will circulate the red tea leaves poured into the feed hopper into the two groups of grooves, so that the red tea leaves in the feed hopper can enter the box body in a quantitative and constant speed, avoiding a large amount of red tea leaves falling into the box body at the same time to reduce the air selection effect, and improving the uniformity of the red tea leaf feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a schematic diagram of a front cross-section of the structure of the utility model;

[0013] Figure 3 It is a right side cross-sectional schematic diagram of the structure of the utility model;

[0014] Figure 4 For this utility model Figure 2 A is a partial enlarged schematic diagram;

[0015] Figure 5 For this utility model Figure 2 A partial enlarged schematic diagram of B in the figure.

[0016] In the figure: 1. box body; 2. feed hopper; 3. rotating bucket; 4. groove; 5. motor; 6. first synchronous wheel; 7. second synchronous wheel; 8. synchronous belt; 9. rotating shaft; 10. fan blade; 11. first air duct; 12. second air duct; 13. air nozzle; 14. connecting pipe; 15. mesh plate; 16. partition plate; 17. cover plate; 18. collecting bag. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-5 , the utility model provides an embodiment: a screening and air separation device for black tea processing, comprising a box 1;

[0019] A feed hopper 2 is provided at the upper end of the box body 1, and a rotating bucket 3 is rotatably installed in the upper end of the box body 1. The rotating bucket 3 is symmetrically provided with grooves 4 above and below. The rotating bucket 3 is located at the connection between the lower end opening of the feed hopper 2 and the box body 1. A driving assembly is installed on the front side of the right end of the box body 1 and the front end of the rotating bucket 3. The driving assembly includes a motor 5, which is installed on the front side of the right end of the box body 1. A first synchronous wheel 6 is rotatably installed in the right end of the box body 1, and a second synchronous wheel 7 is rotatably installed in the front end of the box body 1. The second synchronous wheel 7 is fixedly connected to the front end of the rotating bucket 3. A synchronous belt 8 is sleeved on the first synchronous wheel 6 and the second synchronous wheel 7. This structure drives the first synchronous wheel 6, the second synchronous wheel 7 and the synchronous belt 8 to rotate through the output shaft of the motor 5. The rotation of the second synchronous wheel 7 can drive the rotating bucket 3 to rotate and put the black tea leaves in the feed hopper 2 into the box body 1. A wind selection assembly is installed on the right end of the box body 1, and the wind selection assembly includes a rotating shaft 9. The rotating shaft 9 is fixedly installed on the output shaft of the motor 5. The rotating shaft 9 is fixedly connected to the first synchronous wheel 6. A fan blade 10 is installed at the rear end, and a first air duct 11 is installed on the right side of the box body 1. The fan blade 10 is rotatably inserted in the front end of the first air duct 11. Two groups of second air ducts 12 are installed on the inner wall of the right side of the box body 1. Multiple groups of air nozzles 13 are arranged in an array on the left side of the two groups of second air ducts 12. A connecting pipe 14 is arranged between the two groups of second air ducts 12. The two groups of second air ducts 12 are connected to the first air duct 11. The output shaft of the motor 5 of this structure drives the rotating shaft 9 and the fan blade 10 to rotate. The wind generated by the rotation of the fan blade 10 is transported into the two groups of second air ducts 12 through the first air duct 11, and then blown out through the multiple groups of air nozzles 13 on the surface of the two groups of second air ducts 12, so that the black tea leaves entering the box body 1 can be screened. The wind selection component is connected to the driving component. The device drives the rotating bucket 3 to rotate through the driving component, so that the black tea leaves in the feed hopper 2 are quantitatively and constantly put into the box body 1 through the two groups of grooves 4 on the rotating bucket 3. The driving component drives the wind selection component to screen the black tea leaves that fall into the box body 1;

[0020] Furthermore, the outer wall diameter of the first synchronous wheel 6 is larger than the outer wall diameter of the second synchronous wheel 7, and the outer wall diameter of the first synchronous wheel 6 is ten times the outer wall diameter of the second synchronous wheel 7. According to the diameter size of the first synchronous wheel 6 and the second synchronous wheel 7, this structure enables the first synchronous wheel 6 to rotate and drive the second synchronous wheel 7 to rotate through the synchronous belt 8 when the first synchronous wheel 6 rotates ten times and drives the second synchronous wheel 7 to rotate one circle.

[0021] Furthermore, a collecting bag 18 is provided at the left end of the box body 1, and the collecting bag 18 is kept parallel to the two groups of second air ducts 12. The right end of the collecting bag 18 is made of cloth. The impurities of the black tea leaves selected by the wind are blown into the collecting bag 18 and collected by the collecting bag 18 for subsequent processing.

[0022] Furthermore, mesh plates 15 are symmetrically installed on the lower end of the box body 1, and partition plates 16 are fixedly installed on the lower ends of the two groups of mesh plates 15. The two groups of partition plates 16 are fixedly connected to the bottom of the box body 1, and a cover plate 17 is installed on the lower end of the box body 1 for rotation back and forth. In this structure, the black tea leaves that have been air-selected fall on the surfaces of the two groups of mesh plates 15, and the black tea leaves slide downward on the two groups of mesh plates 15 to screen out large fragments in the tea leaves that are difficult to air-select.

[0023] Working principle: When winnowing black tea leaves, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a large amount of black tea leaves are poured into the feed hopper 2, and the output shaft of the motor 5 drives the first synchronous wheel 6 and the rotating shaft 9 to rotate. The rotation of the first synchronous wheel 6 drives the second synchronous wheel 7 to rotate through the synchronous belt 8, and the rotation of the second synchronous wheel 7 drives the rotating bucket 3 to rotate. When the rotating bucket 3 rotates, a large amount of tea leaves in the feed hopper 2 falls into the two groups of grooves 4 on the surface of the rotating bucket 3, so that the rotating bucket 3 can pour the black tea leaves into the box body 1 by rotating one circle. When the black tea leaves enter the box body 1, the rotation of the rotating shaft 9 drives the fan blades 10 to rotate. The wind force inserted by the rotation of the fan blades 10 is collected and transported into the two groups of second air ducts 12 through the first air duct 11. The wind entering the two groups of second air ducts 12 is blown out through multiple groups of air nozzles 13 to select the black tea leaves in the box body 1. The impurities blown out by the wind enter the collecting bag 18. The black tea leaves after air selection fall on the surfaces of the two groups of mesh plates 15, and the black tea leaves slide downward on the surfaces of the two groups of mesh plates 15, and the broken leaves in the two groups of black tea leaves are screened out. The above is the entire working principle of the utility model.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A screening and air separation device for black tea processing, comprising a box (1); Features: A feed hopper (2) is arranged at the upper end of the box body (1), a rotating bucket (3) is rotatably installed in the upper end of the box body (1), the rotating bucket (3) is symmetrically provided with grooves (4) at the top and bottom, the rotating bucket (3) is located at the connection between the lower end opening of the feed hopper (2) and the box body (1), a driving assembly is installed at the front side of the right end of the box body (1) and the front end of the rotating bucket (3), the driving assembly comprises a motor (5), the motor (5) is installed at the front side of the right end of the box body (1), a first synchronous wheel (6) is rotatably installed in the right end of the box body (1), a second synchronous wheel (7) is rotatably installed in the front end of the box body (1), the second synchronous wheel (7) is fixedly connected to the front end of the rotating bucket (3), the first synchronous wheel (6) and the second synchronous wheel (7) are sleeved with a synchronous belt (8), the A wind selection component is installed at the right end of the box body (1), and the wind selection component is connected to the driving component. The wind selection component includes a rotating shaft (9), and the rotating shaft (9) is fixedly installed on the output shaft of the motor (5). The rotating shaft (9) is fixedly connected to the first synchronous wheel (6). A fan blade (10) is installed at the rear end of the rotating shaft (9). A first air duct (11) is installed on the right side of the box body (1), and the fan blade (10) is rotatably inserted in the front end of the first air duct (11). Two groups of second air ducts (12) are installed on the inner wall of the right side of the box body (1). A plurality of groups of air nozzles (13) are arranged in an array on the left sides of the two groups of second air ducts (12). A connecting pipe (14) is arranged between the two groups of second air ducts (12), and the two groups of second air ducts (12) are connected to the first air duct (11).

2. A screening and air separation device for black tea processing according to claim 1, characterized in that: The outer wall diameter of the first synchronous wheel (6) is greater than the outer wall diameter of the second synchronous wheel (7), and the outer wall diameter of the first synchronous wheel (6) is ten times the outer wall diameter of the second synchronous wheel (7).

3. The screening and winnowing device for black tea processing according to claim 1, characterized in that: A collecting bag (18) is arranged at the left end of the box body (1), the collecting bag (18) is kept parallel to the two groups of second air ducts (12), and the right end of the collecting bag (18) is made of cloth.

4. The screening and winnowing device for black tea processing according to claim 1, characterized in that: The lower end of the box body (1) is symmetrically mounted with mesh plates (15), the lower ends of two groups of mesh plates (15) are fixedly mounted with partition plates (16), the two groups of partition plates (16) are fixedly connected to the bottom of the box body (1), and the lower end of the box body (1) is rotatably mounted with a cover plate (17).

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