Tea leaf withering processing device

Abstract

The utility model belongs to the field of tea leaf withering processing, and particularly relates to a tea leaf withering processing device which comprises a base, a processing basin is fixedly connected to the top surface of the base, a withering assembly is arranged in the processing basin, and the withering assembly comprises a driving motor in the base. The output end of the driving motor is fixedly connected with a stirring blade internally provided with a cavity, a plurality of air outlets communicated with the cavity are formed in the surface of the stirring blade in a rectangular array mode, the surfaces of the air outlets are fixedly connected with a dustproof net, the top face of the stirring blade is provided with an air inlet communicated with the cavity, and the inner bottom wall of the air inlet is fixedly connected with an electric heating net. The stirring blades are driven by the driving motor to rotate, the inclined faces of the side faces of the stirring blades shovel up and turn over tea leaves in the processing basin, meanwhile, hot air input by the draught fan and heated by the electric heating net in the inner cavities of the stirring blades is blown out of the air outlets, and the hot air rotates along with the stirring blades to form circulating airflow, so that the double faces of the tea leaves are evenly heated, and insufficient single-face withering is avoided; the withering efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of tea withering processing, specifically a tea withering processing device. Background Technology

[0002] Withering refers to the process of tea leaves losing moisture before they are killed from the green state, which is the process of waiting for them to "wilt". During withering, fresh leaves will slowly lose moisture, become soft and lose their luster. Although they do not look good at this time, the enzymes in the tea leaves will become very active, which will then quietly promote the formation of various aromatic substances and promote complex chemical changes in enzymes.

[0003] In the prior art, such as in publication number CN204466793U, a tea withering processing device is disclosed. It includes a circulating fan and a dehumidifying fan mounted on the top of an insulated cavity. The second end of a first air inlet pipe, whose first end is connected to the air outlet of the circulating fan, extends into the top surface of the insulated cavity. The second end of an air outlet pipe, whose first end is connected to the air inlet of the circulating fan, extends into the bottom of the inner side of the insulated cavity. The second end of a second air inlet pipe, whose first end is connected to the air inlet of the dehumidifying fan, extends into the top surface of the insulated cavity. A thermocouple and a humidity probe are mounted on the inner wall of the insulated cavity. There are multiple cooling holes on the lower wall of the insulated cavity. A cooling fan is mounted on the outer wall of the insulated cavity at a position relative to each cooling hole. An electric heating element is mounted on the inner wall of the insulated cavity at a position relative to the cooling holes.

[0004] While the aforementioned patent provides accurate temperature and humidity control, resulting in uniform and moderate tea withering that is time-saving and energy-efficient, it lacks a structure to turn the withered tea leaves over. The side of the tea leaves that is in contact with the placement plate becomes more humid than the top surface due to the inability to dissipate moisture in time, affecting the withering effect. Furthermore, the temperature detection of the processing area is relatively limited, only able to detect the temperature of a fixed area, resulting in poor accuracy. Therefore, to address these issues, a tea withering processing device is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, such as the lack of a structure to turn the withered tea leaves over, resulting in the side of the tea leaves that is in contact with the placement plate becoming more humid than the top surface due to the inability to dissipate moisture in time, thus affecting the withering effect; and the limited and inaccurate temperature detection of the processing area, which only detects the temperature of a fixed area, this invention proposes a tea withering processing device.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a tea withering processing device of this utility model includes a base, a processing basin is fixedly connected to the top surface of the base, withering components are provided inside the processing basin, a cover plate is sleeved on the top surface of the processing basin, and a monitoring component is fixedly connected to the top surface of the cover plate.

[0007] The wilting assembly includes a drive motor inside the base, the output end of the drive motor is fixedly connected to a stirring blade with an internal cavity, the surface of the stirring blade has a rectangular array of air outlets that communicate with the cavity, the surface of the air outlets is fixedly connected to a dustproof net, the top surface of the stirring blade has an air inlet that communicates with the cavity, the bottom wall of the air inlet is fixedly connected to an electric heating net, the top surface of the electric heating net is equipped with a fan that seals the air inlet, the top of the stirring blade is fixedly connected to an equipment box, the inner side wall of the equipment box is fixedly connected to a partition, and the top surface of the partition is fixedly connected to a controller.

[0008] The monitoring component includes an exhaust port on the top surface of the cover plate, a fan is fixedly connected to the surface of the exhaust port, a connecting rod is fixedly connected to the bottom end of the fan, a swing plate is fixedly connected to the bottom end of the connecting rod, and a temperature sensor is fixedly connected to the bottom surface of one end of the swing plate.

[0009] Preferably, the internal cavity of the stirring blade is connected to the fan through the top air inlet, the side air outlets of the stirring blade are obliquely distributed and communicate with the cavity, the dustproof net covers the outer surface of the air outlet, and the electric heating net is located at the bottom of the air inlet and is electrically connected to the controller.

[0010] Preferably, the temperature sensor of the monitoring component swings in multiple areas inside the processing basin via a swing plate, and the temperature sensor is connected to the controller signal to adjust the power of the electric heating network according to the detected temperature.

[0011] Preferably, the equipment box is divided into internal spaces by a partition, and the controller is fixed to the top surface of the partition and electrically connected to the drive motor, the electric heating network and the fan.

[0012] Preferably, when the stirring blade rotates under the drive of the drive motor, its inclined side scoops up the tea leaves, while hot air in the cavity is blown towards the tea leaves through the air outlet and forms a circulating hot airflow as the stirring blade rotates.

[0013] Preferably, the swing plate of the monitoring component is linked to the fan via a connecting rod, so that the temperature sensing probe swings in an arc trajectory within the processing basin to cover different detection areas.

[0014] The advantages of this utility model are:

[0015] 1. This utility model uses a stirring blade that rotates under the drive of a motor. Its inclined side scoops up and turns the tea leaves in the processing basin. At the same time, hot air, which is input by a fan and heated by an electric heating grid, is blown out from the air outlet through the cavity inside the stirring blade. The hot air forms a circulating airflow as the stirring blade rotates, so that the tea leaves are heated evenly on both sides, avoiding insufficient withering on one side and improving withering efficiency.

[0016] 2. This utility model uses a temperature sensing probe of the monitoring component to swing along the swing plate in an arc trajectory driven by a fan and connecting rod, covering different areas inside the processing basin to detect the temperature, and transmits the detection signal to the controller to adjust the power of the electric heating network in real time, so as to ensure a uniform temperature in the processing environment, improve temperature control accuracy and withering quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0019] Figure 2 This is a schematic diagram of the withering component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the monitoring component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of this utility model.

[0022] In the diagram: 1. Base; 2. Processing basin; 3. Withering assembly; 31. Drive motor; 32. Stirring blade; 33. Dustproof net; 34. Electric heating net; 35. Fan; 36. Equipment box; 37. Partition; 38. Controller; 4. Cover plate; 5. Monitoring assembly; 51. Fan; 52. Connecting rod; 53. Swing plate; 54. Temperature sensor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1-4As shown, a tea withering processing device includes a base 1, a processing basin 2 fixedly connected to the top surface of the base 1, a withering component 3 disposed inside the processing basin 2, a cover plate 4 sleeved on the top surface of the processing basin 2, and a monitoring component 5 fixedly connected to the top surface of the cover plate 4; the withering component 3 includes a drive motor 31 inside the base 1, the output end of the drive motor 31 fixedly connected to a stirring blade 32 with an internal cavity, the surface of the stirring blade 32 having a rectangular array of air outlets communicating with the cavity, a dustproof net 33 fixedly connected to the surface of the air outlets, an air inlet communicating with the cavity on the top surface of the stirring blade 32, an electric heating net 34 fixedly connected to the inner bottom wall of the air inlet, a fan 35 sealing the air inlet on the top surface of the electric heating net 34, an equipment box 36 fixedly connected to the top of the stirring blade 32, a partition 37 fixedly connected to the inner side wall of the equipment box 36, and a controller 38 fixedly connected to the top surface of the partition 37;

[0025] During operation, in the tea withering process, the drive motor 31 is started to drive the stirring blade 32 to rotate. The side of the stirring blade 32 is angled to scoop up and scatter the tea leaves in the processing basin 2. At the same time, the fan 35 draws external airflow into the air inlet on the top surface of the stirring blade 32. After being heated by the electric heating net 34, it forms hot air and is delivered to the internal cavity of the stirring blade 32. The hot air is blown out through the oblique air outlets distributed in a rectangular array on the surface of the stirring blade 32. The dustproof net 33 prevents tea debris from entering the cavity. As the stirring blade 32 continues to rotate, the hot air rotates with it to form a circulating hot airflow around the inside of the processing basin 2, so that the tea leaves are heated evenly on both sides and the moisture evaporates faster, thus improving the withering efficiency.

[0026] Furthermore, the monitoring component 5 includes an exhaust port on the top surface of the cover plate 4, a fan 51 is fixedly connected to the surface of the exhaust port, a connecting rod 52 is fixedly connected to the bottom end of the fan 51, a swing plate 53 is fixedly connected to the bottom end of the connecting rod 52, and a temperature sensor 54 is fixedly connected to the bottom surface of one end of the swing plate 53.

[0027] During operation, when the withering assembly 3 is running, the fan 51 of the monitoring assembly 5 drives the swing plate 53 to swing in an arc trajectory centered on the exhaust port via the connecting rod 52. This causes the temperature sensor 54, model DS18B20, fixed to the bottom of the swing plate 53, to move at different heights and in different areas within the processing basin 2. The temperature sensor 54 detects the temperature of each area in real time and transmits the signal to the controller 38, model STM32F103C8T6, inside the equipment box 36. The controller 38 dynamically adjusts the heating power of the electric heating grid 34, model SRT-1000, based on the temperature data. At the same time, it controls the speed of the drive motor 31 to adjust the frequency of the stirring blades 32 turning the tea leaves, ensuring a balanced temperature distribution inside the processing basin 2 and avoiding local overheating or underheating, thereby improving the withering quality and temperature control accuracy.

[0028] Furthermore, when the stirring blade 32 rotates under the drive of the drive motor 31, its inclined side surface scoops up the tea leaves, and at the same time, the hot air in the cavity is blown towards the tea leaves through the air outlet and forms a circulating hot airflow as the stirring blade 32 rotates.

[0029] During operation, while the tea leaves are withering in the processing basin 2, the drive motor 31 drives the stirring blade 32 to rotate. The inclined structure on the side of the stirring blade 32 scoops up the tea leaves at the bottom and throws them to the upper part of the processing basin 2. At the same time, the fan 35 draws external airflow into the internal cavity of the stirring blade 32 through the air inlet. After the airflow is heated by the electric heating mesh 34, it becomes hot air. The hot air is blown onto the scooped tea leaves through the obliquely distributed air outlets on the surface of the stirring blade 32. As the stirring blade 32 continues to rotate, the hot air forms a circulating airflow in the processing basin 2, so that the tea leaves are heated evenly on both sides and the moisture evaporates faster, avoiding insufficient withering on one side and improving withering efficiency and uniformity.

[0030] Furthermore, the swing plate 53 of the monitoring component 5 is linked with the fan 51 through the connecting rod 52, so that the temperature sensor 54 swings in an arc trajectory within the processing basin 2 to cover different detection areas.

[0031] During operation, when the monitoring component 5 is running, the fan 51 drives the swing plate 53 to swing in an arc around the exhaust port via the connecting rod 52. The temperature sensor 54, fixed to the bottom of the swing plate 53, covers temperature detection points at different heights and in different areas within the processing basin 2 along the swing trajectory. The temperature sensor 54 transmits the real-time temperature signals to the controller 38. The controller 38 dynamically adjusts the heating power of the electric heating network 34 based on the temperature data from multiple areas and simultaneously controls the speed of the drive motor 31 to adjust the frequency of the stirring blades 32 turning the tea leaves, thereby ensuring a balanced temperature distribution within the processing basin 2, avoiding local overheating or underheating, and improving temperature control accuracy and withering quality.

[0032] Working principle: After the drive motor 31 starts, it drives the stirring blade 32 to rotate. The inclined surface of the stirring blade 32 scoops up and disperses the tea leaves in the processing basin 2. The fan 35 draws external airflow into the cavity through the air inlet on the top surface of the stirring blade 32. The airflow is heated by the electric heating net 34 to form hot air. The hot air is blown onto the tea leaves through the obliquely distributed air outlets on the surface of the stirring blade 32. The dustproof net 33 prevents tea leaf debris from entering the cavity. As the stirring blade 32 continues to rotate, the hot air forms a circulating hot airflow in the processing basin 2, so that the tea leaves are heated evenly on both sides. At the same time, the fan 51 of the monitoring component 5 drives the swing plate 53 to swing in an arc shape through the connecting rod 52, which drives the temperature sensor 54 to move in multiple areas in the processing basin 2 to detect the temperature. The temperature sensor 54 transmits the temperature signal to the controller 38 in the equipment box 36. The controller 38 dynamically adjusts the heating power of the electric heating net 34 and the speed of the drive motor 31 according to the detection data to achieve temperature balance control and finally complete the efficient and uniform withering of the tea leaves.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tea leaf withering processing apparatus, characterised in that: Including base (1), base (1) top surface fixedly connected to processing basin (2), the inside of processing basin (2) is provided with withering subassembly (3), the top surface of processing basin (2) is sleeved with cover plate (4), and the top surface of cover plate (4) is fixedly connected with monitoring subassembly (5); The withering subassembly (3) includes the drive motor (31) in the base (1), the drive motor (31) output end fixedly connected with the inside cavity of stirring blade (32), the surface of stirring blade (32) is rectangular array and is provided with a plurality of air outlets that are communicated with the cavity, the surface of air outlet is fixedly connected with dust screen (33), the top surface of stirring blade (32) is provided with air inlet that is communicated with the cavity, the inner bottom wall of air inlet is fixedly connected with electric heating net (34), the top surface of electric heating net (34) is provided with fan (35) that seals air inlet, the top end of stirring blade (32) is fixedly connected with equipment box (36), the inner side wall of equipment box (36) is fixedly connected with partition (37), and the top surface of partition (37) is fixedly connected with controller (38); The monitoring subassembly (5) includes the exhaust port that is formed in the top surface of cover plate (4), the surface of exhaust port is fixedly connected with fan (51), the bottom end of fan (51) is fixedly connected with connecting rod (52), the bottom end of connecting rod (52) is fixedly connected with swing plate (53), and one end of swing plate (53) bottom surface is fixedly connected with temperature sensing probe (54).

2. A tea withering processing apparatus as claimed in claim 1, wherein: The cavity in the stirring blade (32) is communicated with fan (35) through the top surface air inlet, the side air outlet of stirring blade (32) is inclinedly distributed and is communicated with the cavity, the dust screen (33) covers the outer surface of air outlet, and the electric heating net (34) is located at the bottom of air inlet and is electrically connected with the controller (38).

3. The device for withering tea leaves according to claim 1, characterized in that: The temperature sensing probe (54) of monitoring subassembly (5) swings in multiple areas in the inside of processing basin (2) through swing plate (53), and the temperature sensing probe (54) is signal connected with the controller (38) to adjust the power of electric heating net (34) according to the detected temperature.

4. The device for withering tea leaves according to claim 1, characterized in that: The controller (38) is fixed on the top surface of partition (37) and is electrically connected with drive motor (31), electric heating net (34) and fan (35).

5. The device for withering tea leaves according to claim 1, characterized in that: When the stirring blade (32) rotates under the drive of drive motor (31), the side inclined surface thereof scoops up tea leaves, and hot air in the cavity blows towards tea leaves through air outlet and forms circulating hot air flow along with the rotation of stirring blade (32).

6. The device for withering tea leaves according to claim 1, characterized in that: The swing plate (53) of monitoring subassembly (5) is linked with fan (51) through connecting rod (52), so that the temperature sensing probe (54) swings in an arc track in processing basin (2) to cover different detection areas.

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