Tea withering machine

Abstract

The utility model discloses a tea withering machine, which belongs to the field of tea processing, and comprises a trough body and a mesh plate installed in the trough body, wherein a main pipeline extending along the axial direction thereof is installed in the trough body, and a plurality of branch pipelines are connected to the main pipeline, and the plurality of branch pipelines are arranged at intervals along the axial direction of the trough body; a plurality of air outlet holes facing the mesh plate are evenly opened on the branch pipeline; a blower is arranged on one side of the trough body, and the air outlet pipe of the blower is connected to the main pipeline, and an electric heating wire is also installed in the air outlet pipe of the blower. The utility model can make the hot air volume acting on the mesh plate basically consistent, so that the withering of the tea leaves is more uniform, and the quality of the tea leaves is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of tea processing, and specifically relates to a tea withering machine. Background Art

[0002] Tea is a traditional and most commonly used beverage ingredient in people's lives. Tea and tea drinks are known as "one of the three major beverages in the world."

[0003] Withering is an important process in the production of black tea, green tea, etc. The functions of withering are: (1) making fresh tea leaves suitable for rolling; (2) making fresh tea leaves suitable for fermentation; and (3) reducing the amount of water that must evaporate during baking.

[0004] The commonly used withering methods are: (1) withering outdoors under sunlight, where the tea leaves to be withered are spread on bamboo mats. However, when the withering is completed and the tea leaves are collected, the bamboo mats need to be lifted manually to pour the tea leaves into a collection container. This consumes a lot of manpower, takes a long time, and is inefficient; (2) indoor withering, where a withering trough is set up indoors. The withering trough includes a vertical plate closed on all sides and a support frame built at the bottom. A number of withering mesh plates are placed on the support frame. The vertical plates stand on the ground, and a hot air blower is provided on one side of the vertical plate. The tea leaves to be withered are spread on the withering mesh plates, and the hot air blower blows hot air into the withering trough, and the heat of the hot air is used to wither the tea leaves on the withering mesh plates.

[0005] Traditional withering troughs are all made by directly setting electric heating wires at the air outlet of the blower. When the blower is working, the wind generated by the blower is heated by the electric heating wire and enters from one end under the withering trough mesh to the other end under the withering trough mesh. However, since the chamber under the withering trough mesh is open, after the hot air enters under the mesh, most of the hot air directly overflows through the mesh. The hot air has a better withering effect on the tea leaves on the end of the mesh close to the blower, while the hot air has a poor withering effect on the tea leaves on the end of the mesh far from the blower, which ultimately leads to uneven withering of the tea leaves on the withering trough and poor withering quality. Utility Model Content

[0006] The utility model aims to provide a tea withering machine, which makes the hot air volume acting on the screen plate basically consistent, so that the withering of the tea leaves is more uniform and the quality of the tea leaves is guaranteed.

[0007] In order to achieve the purpose of the utility model, the technical solution adopted is: a tea withering machine, including a trough body and a mesh plate installed in the trough body, a main pipeline extending along its axial direction is installed in the trough body, and a plurality of branch pipelines are connected to the main pipeline, and the plurality of branch pipelines are arranged at intervals along the axial direction of the trough body; a plurality of air outlet holes facing the mesh plate are evenly opened on the branch pipeline; a blower is arranged on one side of the trough body, the air outlet pipe of the blower is connected to the main pipeline, and an electric heating wire is also installed in the air outlet pipe of the blower.

[0008] Furthermore, the distance between two adjacent branch pipes is 15 cm to 30 cm.

[0009] Furthermore, the distance between the air outlet and the mesh plate is 15 cm to 30 cm.

[0010] Furthermore, there are two main pipelines, which are respectively installed on both sides of the tank body.

[0011] Furthermore, a buffer box is connected between the main pipeline and the air outlet pipe of the blower.

[0012] Furthermore, a single-chip microcomputer, a display, and a button are installed on the trough body, and a temperature and humidity sensor and a wind speed sensor are installed in the main pipeline or the branch pipeline. The output end of the single-chip microcomputer is connected to the input end of the display, the input end of the blower, and the input end of the heating wire, and the output end of the button, the output end of the temperature and humidity sensor, and the output end of the wind speed sensor are connected to the input end of the single-chip microcomputer.

[0013] Furthermore, the trough body is also equipped with a single-chip microcomputer, a display, a touch screen, and a temperature and humidity sensor and a wind speed sensor installed in the main pipeline or the branch pipeline. The output end of the single-chip microcomputer is connected to the input end of the display, the input end of the blower, and the input end of the heating wire, and the output end of the touch screen, the output end of the temperature and humidity sensor, and the output end of the wind speed sensor are connected to the input end of the single-chip microcomputer.

[0014] Furthermore, a PLC, a relay module, and a touch screen are installed on the trough body, and a temperature and humidity sensor and a wind speed sensor are installed in the main pipeline or the branch pipeline. The PLC controls the blower and the heating wire through the relay module. The output ends of the temperature and humidity sensor and the wind speed sensor are connected to the input end of the PLC, and the touch screen is bidirectionally electrically connected to the single-chip computer.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model can set a main pipeline and a branch pipeline, and open an air outlet towards the mesh plate on the branch pipeline, so that the heated hot air is sent out through the air outlet and acts evenly on the tea leaves, thereby ensuring that the tea leaves on the mesh plate are more evenly heated by the wind, the tea leaves are more evenly withered, and the quality of the tea leaves is guaranteed.

[0017] 2. By connecting a buffer box to the air outlet pipe of the blower, the hot air sent by the blower can be evenly diverted after entering the buffer box, thereby ensuring that the air volume entering the two main pipes remains consistent, thereby ensuring that the air volume entering each branch pipe is consistent as much as possible, making the air volume acting on the entire screen more uniform, and making the withering of the tea leaves more uniform.

[0018] 3. By setting up temperature and humidity sensors and wind speed sensors for real-time feedback and controlling them through a single-chip microcomputer or PLC, the wind speed and temperature during the withering process can be kept consistent, thus ensuring the best quality of the tea leaves during the withering process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings illustrate exemplary embodiments of the present invention and are used to explain the principles of the present invention together with the description. These drawings are included to provide a further understanding of the present invention, and the drawings are included in and constitute a part of this specification.

[0020] Figure 1 is a top view of the tea withering machine provided in Example 1;

[0021] Figure 2 is a layout diagram of the main pipeline and the branch pipeline in Example 1;

[0022] Figure 3 is a system diagram of the electric control system in Example 1;

[0023] Figure 4 is a system diagram of the electric control system in Example 2;

[0024] Figure 5 It is a system diagram of the electronic control system in Example 3.

[0025] Markings and corresponding parts names in the attached drawings:

[0026] 1. Tank body, 2. Outer cover, 3. Mesh plate, 4. Blower, 5. Electric heating wire, 6. Buffer box, 7. Main pipeline, 8. Branch pipeline, 9. Air outlet. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and implementations. It is to be understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Example 1

[0030] like Figure 1 , Figure 2 As shown, a tea withering machine provided in this embodiment includes a trough body 1, which is rectangular in shape. A mesh plate 3 is installed in the trough body 1, and there is a certain interval between the mesh plate 3 and the bottom of the trough body 1; in order to facilitate the fixation of the edge of the mesh plate 3, an edge table can also be provided on the inner wall of the trough body 1, and the edge of the mesh plate 3 is fixedly supported on the edge table; when the tea leaves are evenly spread on the mesh plate 3, in order to prevent the mesh plate 3 from being concave in the middle due to gravity, a plurality of cross bars extending along the width direction of the trough body 1 can also be provided, and the plurality of cross bars are evenly spaced along the length direction of the trough body 1, and the plurality of cross bars jointly support the mesh plate 3.

[0031] A main pipe 7 is also installed in the tank body 1. The main pipe 7 is located below the mesh plate 3. The length of the main pipe 7 is not less than the internal length of the tank body 1. The axial direction of the main pipe 7 is consistent with the axial direction of the tank body 1. The main pipe 7 can be directly fixed to the bottom surface of the tank body 1 or the side wall of the tank body 1. The main pipe 7 is also connected to a plurality of branch pipes 8. The axial direction of the branch pipes 8 is consistent with the width direction of the tank body 1. The plurality of branch pipes 8 are evenly spaced along the length direction of the tank body 1. The plurality of branch pipes 8 are evenly provided with air outlets 9 facing the mesh plate 3, so that the hot air sent through the air outlets 9 can directly act on the mesh plate 3, and the hot air sent through the air outlets 9 is prevented from flowing to the bottom of the tank body 1 or the sides of the tank body 1.

[0032] A blower 4 is also installed on one side of the tank body 1, and the air outlet pipe of the blower 4 is connected to the main pipe 7, so that all the wind energy generated by the blower 4 can enter the main pipe 7, and the wind generated by the blower 4 is prevented from spreading around before entering the main pipe 7; at the same time, an electric heating wire 5 is fixedly installed in the air outlet pipe of the blower 4 through a bracket, so that the wind generated by the blower 4 can be heated by the electric heating wire 5 during the process of being sent out through the air outlet pipe of the blower 4, so that the wind sent out through the air outlet pipe of the blower 4 is hot wind. By installing the electric heating wire 5 in the air outlet pipe of the blower 4, the heat distribution of the wind entering the main pipe 7 is more uniform.

[0033] In order to allow the hot air delivered through the air outlet holes 9 to cover the entire mesh plate 3, when designing the branch pipes 8, the spacing between two adjacent branch pipes 8 is 15cm to 30cm, and the spacing between the air outlet holes 9 and the mesh plate 3 is 15cm to 30cm; at the same time, in this embodiment, the air outlet holes 9 on two adjacent branch pipes 8 can also be arranged in a staggered manner.

[0034] In order to make the hot air entering the branch pipe 8 more evenly distributed, the main pipe 7 of the present embodiment can be set to two, and the two main pipes 7 are respectively installed on both sides of the trough body 1. At this time, the two ends of the branch pipe 8 are respectively connected to the two main pipes 7, so that the hot air enters from both ends of the branch pipe 8, effectively avoiding the inconsistent air volume delivered by each air outlet 9 due to the hot air entering from only one end of the branch pipe 8, thereby ensuring that the air volume delivered by each air outlet 9 is consistent as much as possible.

[0035] In order to make the heat of the hot air more uniform, a buffer box 6 is also connected between the main duct 7 and the air outlet pipe of the blower 4, so that the hot air delivered by the blower 4 can not only be further evenly mixed in the buffer box 6, but also the wind can enter the two main ducts 7 evenly after being buffered in the buffer box 6, thereby ensuring that the air volume entering the two main ducts 7 is consistent.

[0036] In this embodiment, an outer cover 2 may be provided together outside the blower 4 and the buffer box 6. In order to ensure the amount of air entering the blower 4, a grille corresponding to the air inlet pipe of the blower 4 may be provided on the outer cover 2. Alternatively, the outlet end of the air inlet pipe of the blower 4 may be directly passed through the outer cover 2 and flush with the outer surface of the outer cover 2. However, this structure requires a filter to be installed in the air inlet pipe of the blower 4.

[0037] In order to further control the temperature of the hot air and the wind speed delivered from the air outlet 9, as shown in FIG. Figure 3 As shown, a temperature and humidity sensor and a wind speed sensor can also be installed in the main duct 7 or the branch duct 8. The temperature and humidity sensor is used to detect the temperature and humidity of the hot air, and the wind speed sensor is used to detect the speed of the hot air flow. At the same time, a single-chip microcomputer, a display, and a button can also be installed on the outer cover 2. The model of the single-chip microcomputer is STC89C52. The output end of the single-chip microcomputer is connected to the input end of the display, the input end of the blower 4, and the input end of the heating wire. The output end of the button, the output end of the temperature and humidity sensor, and the output end of the wind speed sensor are connected to the input end of the single-chip microcomputer.

[0038] When in use, the temperature, wind speed and blowing time to be set are input into the single-chip microcomputer through the button, and then the start instruction is sent to the single-chip microcomputer through the button. The single-chip microcomputer starts the blower 4 and the electric heating wire 5, the blower 4 starts to blow, and the electric heating wire 5 starts to heat up. The wind generated by the blower 4 is heated when passing through the electric heating wire 5, so that the wind entering the buffer box 6 is hot air, and the hot air entering the buffer box 6 enters the two main pipes 7 respectively, and the hot air entering the two main pipes 7 enters from the two ends of the branch pipe 8, and is finally sent out through the air outlet 9 on the branch pipe 8 to act on the mesh plate 3, thereby acting on the tea leaves on the mesh plate 3 to achieve withering of the tea leaves.

[0039] When the temperature and humidity sensor detects that the hot air temperature is too high or too low during the withering process of the tea leaves, the current passing through the electric heating wire 5 is adjusted by the single-chip microcomputer; when the wind speed sensor detects that the wind speed is too high or too low during the withering process of the tea leaves, the frequency of the blower 4 is adjusted by the single-chip microcomputer, thereby changing the speed of the blower 4.

[0040] In this embodiment, in order to further improve the quality of tea withering, a vibration motor that drives the mesh plate 3 to vibrate can also be installed on the cross bar, and the input end of the vibration motor is electrically connected to the output end of the single-chip computer. In order to prevent the vibration motor from damaging the main pipeline 7 and the branch pipeline 8 during vibration, the main pipeline 7 can be installed on the trough body 1 through a shock-absorbing seat; at the same time, when the withering trough is used in a tea production line, in order to facilitate the automatic delivery of the withered tea leaves, the end of the withering trough away from the blower 4 can be set to an open state, and the mesh plate 3 can be set to an inclined state. At this time, the end of the mesh plate 3 away from the blower 4 is lower than the end of the mesh plate 3 close to the blower 4. When the tea leaves to be withered are evenly delivered to the mesh plate 3 from the end of the mesh plate 3 close to the blower 4, and the tea leaves on the mesh plate 3 are in the process of withering, through the vibration of the vibration motor, the tea leaves move toward the end of the mesh plate 3 away from the blower 4 while withering, and finally the withered tea leaves are delivered from the end of the mesh plate 3 away from the blower 4. When the withering trough is used in a tea production line, in order to ensure that the tea leaves are withered while reaching the other end of the mesh plate 3 from one end of the mesh plate 3, the speed at which the tea leaves move on the mesh plate 3 can be adjusted by adjusting the vibration frequency of the vibration motor.

[0041] Example 2

[0042] like Figure 4 As shown, the difference between this embodiment 2 and embodiment 1 is that: the tea withering machine provided in this embodiment 2 can also be installed with a temperature and humidity sensor and a wind speed sensor in the main duct 7 or the branch duct 8 in order to further control the temperature of the hot air and the wind speed sent out from the air outlet 9. The temperature and humidity sensor is used to detect the temperature and humidity of the hot air, and the wind speed sensor is used to detect the flow speed of the hot air. At the same time, a single-chip microcomputer, a display, and a touch screen can also be installed on the outer cover 2. The model of the single-chip microcomputer is STM32. The output end of the single-chip microcomputer is connected to the input end of the display, the input end of the blower 4, and the input end of the heating wire. The output end of the touch screen, the output end of the temperature and humidity sensor, and the output end of the wind speed sensor are connected to the input end of the single-chip microcomputer.

[0043] When in use, the temperature, wind speed and blowing time to be set are input to the single-chip microcomputer through the touch screen, and then a start command is sent to the single-chip microcomputer through the touch screen. The single-chip microcomputer starts the blower 4 and the electric heating wire 5, the blower 4 starts to blow, and the electric heating wire 5 starts to heat up. The wind generated by the blower 4 is heated when passing through the electric heating wire 5, so that the wind entering the buffer box 6 is hot air, and the hot air entering the buffer box 6 enters the two main pipes 7 respectively, and the hot air entering the two main pipes 7 enters from both ends of the branch pipe 8, and is finally sent out through the air outlet 9 on the branch pipe 8 to act on the mesh plate 3, thereby acting on the tea leaves on the mesh plate 3 to achieve withering of the tea leaves.

[0044] When the temperature and humidity sensor detects that the hot air temperature is too high or too low during the withering process of the tea leaves, the current passing through the electric heating wire 5 is adjusted by the single-chip microcomputer; when the wind speed sensor detects that the wind speed is too high or too low during the withering process of the tea leaves, the frequency of the blower 4 is adjusted by the single-chip microcomputer, thereby changing the speed of the blower 4.

[0045] Example 3

[0046] like Figure 5 As shown, the difference between this embodiment 3 and embodiments 1 and 2 is that: the tea withering machine provided in this embodiment 3 can further install a temperature and humidity sensor and a wind speed sensor in the main duct 7 or the branch duct 8 in order to further control the temperature of the hot air and the wind speed sent out from the air outlet 9. The temperature and humidity sensor is used to detect the temperature and humidity of the hot air, and the wind speed sensor is used to detect the flow speed of the hot air. At the same time, a PLC, a relay module, and a touch screen can also be installed on the outer cover 2. The PLC controls the blower 4 and the heating wire through the relay module. The output ends of the temperature and humidity sensor and the wind speed sensor are connected to the input end of the PLC, and the touch screen is bidirectionally electrically connected to the single-chip microcomputer.

[0047] When in use, the temperature, wind speed and blowing time to be set are input to the PLC through the touch screen via the relay module. Then, the touch screen sends a start command to the single-chip microcomputer through the relay module. The single-chip microcomputer starts the blower 4 and the electric heating wire 5. The blower 4 starts to blow, and the electric heating wire 5 starts to heat up. The wind generated by the blower 4 is heated when passing through the electric heating wire 5, so that the wind entering the buffer box 6 is hot air, and the hot air entering the buffer box 6 enters the two main pipes 7 respectively. The hot air entering the two main pipes 7 enters from both ends of the branch pipe 8, and is finally sent out through the air outlet 9 on the branch pipe 8 to act on the mesh plate 3, thereby acting on the tea leaves on the mesh plate 3 to achieve withering of the tea leaves.

[0048] When the temperature and humidity sensor detects that the hot air temperature is too high or too low during the withering process of the tea leaves, the current passing through the electric heating wire 5 is adjusted through the PLC; when the wind speed sensor detects that the wind speed is too high or too low during the withering process of the tea leaves, the frequency of the blower 4 is adjusted through the PLC, thereby changing the speed of the blower 4.

[0049] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments / methods or examples described in this specification and the features of the different embodiments / methods or examples, unless they are contradictory.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. A tea withering machine, characterized in that: The invention comprises a tank body (1) and a mesh plate (3) installed in the tank body (1); a main pipe (7) extending along the axial direction thereof is installed in the tank body (1); a plurality of branch pipes (8) are connected to the main pipe (7); the plurality of branch pipes (8) are arranged at intervals along the axial direction of the tank body (1); a plurality of air outlet holes (9) facing the mesh plate (3) are evenly arranged on the branch pipes (8); a blower (4) is arranged on one side of the tank body (1); an air outlet pipe of the blower (4) is connected to the main pipe (7), and an electric heating wire (5) is installed in the air outlet pipe of the blower (4).

2. The tea withering machine according to claim 1, characterized in that: The distance between two adjacent branch pipes (8) is 15 cm to 30 cm.

3. The tea withering machine according to claim 1, characterized in that: The distance between the air outlet hole (9) and the mesh plate (3) is 15 cm to 30 cm.

4. The tea withering machine according to claim 1, characterized in that: There are two main pipelines (7), and the two main pipelines (7) are respectively installed on both sides of the tank body (1).

5. The tea withering machine according to claim 1, characterized in that: A buffer box (6) is also connected between the main pipeline (7) and the air outlet pipe of the blower (4).

6. The tea withering machine according to any one of claims 1 to 5, characterized in that: The tank body (1) is also equipped with a single-chip microcomputer, a display, and a button. A temperature and humidity sensor and a wind speed sensor are also installed in the main pipeline (7) or the branch pipeline (8). The output end of the single-chip microcomputer is connected to the input end of the display, the input end of the blower (4), and the input end of the heating wire. The output end of the button, the output end of the temperature and humidity sensor, and the output end of the wind speed sensor are connected to the input end of the single-chip microcomputer.

7. The tea withering machine according to any one of claims 1 to 5, characterized in that: The tank body (1) is also equipped with a single-chip microcomputer, a display, a touch screen, and a temperature and humidity sensor and a wind speed sensor installed in the main pipeline (7) or the branch pipeline (8); the output end of the single-chip microcomputer is connected to the input end of the display, the input end of the blower (4), and the input end of the heating wire; the output end of the touch screen, the output end of the temperature and humidity sensor, and the output end of the wind speed sensor are connected to the input end of the single-chip microcomputer.

8. The tea withering machine according to any one of claims 1 to 5, characterized in that: The tank body (1) is also equipped with a PLC, a relay module, and a touch screen. A temperature and humidity sensor and a wind speed sensor are also installed in the main pipeline (7) or the branch pipeline (8). The PLC controls the blower (4) and the heating wire through the relay module. The output end of the temperature and humidity sensor and the output end of the wind speed sensor are connected to the input end of the PLC. The touch screen is bidirectionally electrically connected to the single-chip microcomputer.

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