Multistage screening device for green tea processing

Abstract

The utility model discloses a multistage screening device for green tea processing, which comprises a working table, a rotating cylinder is rotatably mounted at the top of the working table, a cylinder cover is in threaded connection with the top of the outer wall of the rotating cylinder, a first screening cylinder and a second screening cylinder are arranged in the rotating cylinder, and the second screening cylinder is located outside the first screening cylinder. A first screening hole and a second screening hole are formed in the first screening barrel and the second screening barrel respectively, the aperture of the first screening hole is larger than that of the second screening hole, a drying pipe is rotationally installed at the top of the workbench through a bearing, the driving motor is in transmission connection with the drying pipe, and the output end of the air heater communicates with the drying pipe. According to the tea leaf screening device, multi-stage screening of tea leaves can be completed through the rotating cylinder, the first screening cylinder, the second screening cylinder, the first screening holes and the second screening holes, the tea leaves in the screening process can be dried through the air heater, the air inlet pipe and the drying pipe, and the tea leaf screening speed can be increased through output wind power.

Description

Technical Field

[0001] The utility model relates to a multi-stage screening device for green tea processing. Background Art

[0002] Green tea is a shrub or small tree of the genus Camellia in the Theaceae family. It has a natural shape and bright green color. It is made from the new leaves or buds of the tea tree through a process of withering, shaping, and drying.

[0003] Green tea often needs to be screened during the processing. Most existing screening devices have a single screening structure, which makes it difficult to perform multi-stage screening, and thus it is not convenient to process green tea leaves of different specifications, which is inconvenient.

[0004] Therefore, it is necessary to provide a multi-stage screening device for green tea processing to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a multi-stage screening device for green tea processing to solve the problems raised in the above background technology.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A multi-stage screening device for green tea processing comprises a workbench, a rotating drum is rotatably mounted on the top of the workbench, a drum cover is threadedly connected to the top of the outer wall of the rotating drum, a first screening drum and a second screening drum are arranged inside the rotating drum, the second screening drum is located outside the first screening drum, the first screening drum and the second screening drum are respectively provided with a first screening hole and a second screening hole, the aperture of the first screening hole is larger than that of the second screening hole, a drying tube is rotatably mounted on the top of the workbench through a bearing, the drying tube is fixedly penetrated by the rotating drum, a support frame is arranged at the bottom of the workbench, a driving motor and a hot air blower are arranged on the support frame, the driving motor is transmission-connected to the drying tube, and the output end of the hot air blower is connected to the drying tube.

[0008] Preferably, a circular groove is provided on the top of the workbench, and sliding blocks are provided on both sides of the bottom of the rotating cylinder, and the two sliding blocks are slidably arranged in the circular groove.

[0009] Preferably, the output shaft of the driving motor is connected with a driving gear, the outer wall of the drying tube is fixedly sleeved with a driven gear, and the driven gear is meshingly connected with the driving gear.

[0010] Preferably, a protective net is provided on the top of the drying tube.

[0011] Preferably, the top of the cylinder cover is provided with an exhaust hole, and there are a plurality of the exhaust holes, which are distributed in a circular array about the center of the cylinder cover.

[0012] Preferably, the output end of the hot air blower is connected to an air inlet pipe, one end of the air inlet pipe extends into the interior of the drying pipe, a sealing rubber pad is provided on the inner wall of the drying pipe, and the inner ring of the sealing rubber pad is in contact with the outer ring of the air inlet pipe.

[0013] The beneficial effects of the utility model are:

[0014] 1. Open the cylinder cover, put the tea leaves into the first screening cylinder and then close the cylinder cover, start the driving motor to drive the drying tube to rotate, and then drive the rotating cylinder to rotate, so that the tea leaves inside the rotating cylinder rotate accordingly, and the multi-stage screening process of the tea leaves can be completed through the first screening cylinder, the second screening cylinder, the first screening hole, and the second screening hole.

[0015] 2. During the rotation of the rotating drum, start the hot air blower to output hot air to the inside of the first screening drum through the air inlet pipe and the drying pipe. This can not only dry the tea leaves in the screening process, but also speed up the tea screening process through the output wind force, so as to expand the application scope of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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, but this does not limit the protection scope of the utility model.

[0017] Figure 1 A front cross-sectional view of the entirety of the utility model;

[0018] Figure 2 The utility model provides Figure 1 A partial structural diagram of

[0019] Figure 3 A top view of the air inlet pipe provided by the utility model inside the drying pipe;

[0020] Figure 4 A top view of the rotating drum provided by the utility model;

[0021] Figure 5 A front view of the whole provided by the utility model;

[0022] Figure 6 This is a top view of the cylinder cover provided by the utility model.

[0023] Among them, 1. workbench; 2. rotating cylinder; 3. cylinder cover; 4. first screening cylinder; 5. second screening cylinder; 6. drying tube; 7. support frame; 8. driving motor; 9. hot air blower; 10. circular groove; 11. slider; 12. driving gear; 13. driven gear; 14. protective net; 15. exhaust hole; 16. air inlet pipe; 17. sealing rubber pad. DETAILED DESCRIPTION

[0024] See also Figures 1 to 6 A multi-stage screening device for green tea processing is shown, comprising a workbench 1, a rotating drum 2 is rotatably mounted on the top of the workbench 1, a drum cover 3 is threadedly connected to the top of the outer wall of the rotating drum 2, a first screening drum 4 and a second screening drum 5 are arranged inside the rotating drum 2, the second screening drum 5 is located outside the first screening drum 4, the first screening drum 4 and the second screening drum 5 are respectively provided with a first screening hole and a second screening hole, the aperture of the first screening hole is larger than that of the second screening hole, a drying tube 6 is rotatably mounted on the top of the workbench 1 through a bearing, the drying tube 6 is fixedly penetrated by the rotating drum 2, a support frame 7 is arranged at the bottom of the workbench 1, a driving motor 8 and a hot air blower 9 are arranged on the support frame 7, the driving motor 8 is transmission-connected to the drying tube 6, and the output end of the hot air blower 9 is connected to the drying tube 6.

[0025] Furthermore, a circular groove 10 is formed on the top of the workbench 1 , and sliding blocks 11 are provided on both sides of the bottom of the rotating cylinder 2 , and the two sliding blocks 11 are slidably disposed in the circular groove 10 .

[0026] The two sliding blocks 11 and the annular groove 10 are provided to ensure the stability of the rotation of the rotating drum 2 .

[0027] Furthermore, the output shaft of the driving motor 8 is connected to a driving gear 12 , and the outer wall of the drying tube 6 is fixedly sleeved with a driven gear 13 , and the driven gear 13 is meshedly connected to the driving gear 12 .

[0028] By setting the driving gear 12 and the driven gear 13, the drying tube 6 can be driven to rotate when the output shaft of the driving motor 8 rotates.

[0029] Furthermore, a protective net 14 is provided on the top of the drying tube 6 .

[0030] The protection net 14 is provided to prevent the tea leaves in the first screening cylinder 4 from falling into the drying tube 6 .

[0031] Furthermore, a vent hole 15 is disposed on the top of the cylinder cover 3 , and a plurality of vent holes 15 are disposed, and the vent holes 15 are distributed in a circular array about the center of the cylinder cover 3 .

[0032] The hot air outputted from the drying tube 6 enters the first screening drum 4 and is discharged from the rotating drum 2 through the first screening holes, the second screening holes and the exhaust holes to prevent the rotating drum 2 from being ruptured due to excessive air pressure in the rotating drum 2 .

[0033] Furthermore, the output end of the hot air blower 9 is connected to an air inlet pipe 16 , one end of which extends into the drying pipe 6 . A sealing rubber pad 17 is provided on the inner wall of the drying pipe 6 , and the inner circle of the sealing rubber pad 17 contacts the outer circle of the air inlet pipe 16 .

[0034] The sealing rubber pad 17 is provided to improve the sealing performance of the connection between the air inlet pipe 16 and the drying pipe 6 .

[0035] When the utility model is used, the drum cover 3 is opened, tea leaves are put into the first screening drum 4 and then the drum cover 3 is closed, the driving motor 8 is started to drive the drying tube 6 to rotate, and then the rotating drum 2 is driven to rotate, so that the tea leaves inside the rotating drum 2 rotate accordingly, and the first screening drum 4 and the second screening drum 5 are respectively provided with a first screening hole and a second screening hole, and the aperture of the first screening hole is larger than that of the second screening hole. The centrifugal force generated by the rotation makes the tea leaves of larger specifications located inside the first screening drum 4, the tea leaves of medium specifications pass through the first screening hole and are stored between the second screening drum 5 and the first screening drum 4, and the tea leaves of smaller specifications pass through the second screening hole and are stored between the rotating drum 2 and the second screening drum 5, thereby completing the multi-stage screening process of the tea leaves, during the rotation of the rotating drum 2, the hot air blower 9 is started, so as to output hot air to the first screening drum 4 through the air inlet pipe 16 and the drying tube 6, so that the tea leaves in the screening process can be dried, and the speed of tea leaf screening can be accelerated by the output wind force, so as to expand the application scope of the device.

[0036] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A multi-stage screening device for green tea processing, characterized in that: It includes a workbench, a rotating drum is rotatably installed on the top of the workbench, a drum cover is threadedly connected to the top of the outer wall of the rotating drum, a first screening drum and a second screening drum are arranged inside the rotating drum, the second screening drum is located outside the first screening drum, the first screening drum and the second screening drum are respectively provided with a first screening hole and a second screening hole, the aperture of the first screening hole is larger than that of the second screening hole, a drying pipe is rotatably installed on the top of the workbench through a bearing, the drying pipe is fixedly penetrated into the rotating drum, a support frame is arranged at the bottom of the workbench, a driving motor and a hot air blower are arranged on the support frame, the driving motor is transmission-connected to the drying pipe, and the output end of the hot air blower is connected to the drying pipe.

2. A multi-stage screening device for green tea processing according to claim 1, characterized in that: A circular groove is provided on the top of the workbench, and sliding blocks are provided on both sides of the bottom of the rotating cylinder, and the two sliding blocks are slidably arranged in the circular groove.

3. A multi-stage screening device for green tea processing according to claim 1, characterized in that: The output shaft of the driving motor is connected with a driving gear, the outer wall of the drying tube is fixedly sleeved with a driven gear, and the driven gear is meshed and connected with the driving gear.

4. A multi-stage screening device for green tea processing according to claim 1, characterized in that: A protective net is arranged on the top of the drying tube.

5. The multi-stage screening device for green tea processing according to claim 1, characterized in that: The top of the cylinder cover is provided with an exhaust hole, and a plurality of the exhaust holes are provided, and the plurality of the exhaust holes are distributed in a circular array about the center of the cylinder cover.

6. The multi-stage screening device for green tea processing according to claim 1, characterized in that: The output end of the hot air blower is connected with an air inlet pipe, one end of which extends into the interior of the drying pipe. A sealing rubber pad is arranged on the inner wall of the drying pipe, and the inner ring of the sealing rubber pad contacts the outer ring of the air inlet pipe.

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