White tea leaves with function of reducing blood fat and preparation device of white tea leaves

Abstract

The invention discloses white tea leaves with a blood fat reducing function and a preparation device thereof, and relates to the technical field of tea processing, the white tea leaves comprise at least three withering cabins, the withering cabins are sequentially communicated from top to bottom, a sealing mechanism is arranged in the communicated area of the withering cabins, a first conveying belt is arranged in each withering cabin, and a second conveying belt is arranged in each withering cabin. The conveying device is used for conveying and placing tea; the temperature and humidity adjusting mechanisms correspond to the withering cabins in number, are arranged in the withering cabins and are used for adjusting the temperature and humidity required by the tea leaves; the number of the illumination parts corresponds to that of the withering cabins, the illumination parts are arranged in the withering cabins and are used for adjusting illumination of tea leaves, and collaborative optimization of physical space and biochemical parameters is formed through vertical series connection design and independent temperature and humidity illumination control of the three stages of withering cabins: in the first stage, blue light induces polyphenol oxidase activity to be improved and EGCG retention rate to be increased; in the third stage, red light and far infrared are combined, so that the synthesis amount of GABA is increased, the content of tea polysaccharide is increased, and directional enrichment of functional components of the white tea is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of tea processing, and more specifically, to a white tea leaf with blood lipid-lowering function and its preparation device. Background Art

[0002] White tea is a slightly fermented tea that is not subjected to fixation or rolling, but only undergoes natural withering, sun drying or slow baking over a low heat. Its appearance has intact bud hairs all over, with a yellowish-green and clear soup color, a sweet and mellow taste, a high floral fragrance, and a strong honey fragrance. White tea contains the component of caffeine, which can stimulate the nerve center of people and achieve the effect of refreshing.

[0003] As a traditional Chinese healthy beverage, the blood lipid-lowering effect of white tea has been confirmed by many studies, mainly attributed to the synergistic effect of active ingredients such as tea polyphenols (especially EGCG), γ-aminobutyric acid (GABA), and tea polysaccharides. However, traditional white tea processing relies on the natural withering process, and it is difficult to adjust the temperature and humidity of the tea leaves during natural withering. Most of the withering process is a single environmental parameter, which leads to the difficulty in accurately regulating the activity of tea polyphenols in stages. Moreover, EGCG is easily over-oxidized and lost at high temperatures, and the synthesis of GABA is insufficiently induced by red light in stages, resulting in unstable content of blood lipid-lowering functional components in the finished tea.

[0004] Based on this, we provide a white tea leaf with blood lipid-lowering function and its preparation device. Summary of the Invention

[0005] In order to solve the problems raised in the above background art, the present invention provides a white tea leaf with blood lipid-lowering function and its preparation device. Through the vertical series design of three-stage withering cabins and independent temperature, humidity, and light control, the synergistic optimization of physical space and biochemical parameters is formed: in the first stage, blue light induces the increase of polyphenol oxidase activity and the increase of EGCG retention rate; in the third stage, the combination of red light and far-infrared light increases the synthesis amount of GABA and the content of tea polysaccharides, realizing the directional enrichment of functional components of white tea.

[0006] The white tea leaf with blood lipid-lowering function and its preparation device provided by the present invention adopt the following technical solutions:

[0007] A white tea leaf with the function of lowering blood lipids and a preparation device thereof, comprising at least three withering chambers, wherein the withering chambers are connected in sequence from top to bottom, and a sealing mechanism is provided in the connecting area of the withering chambers, and each of the withering chambers is provided with a conveyor belt 1 for conveying and placing tea leaves; temperature and humidity adjustment mechanisms corresponding to the number of withering chambers are provided in the withering chambers for adjusting the required temperature and humidity of the tea leaves; lighting elements corresponding to the number of withering chambers are provided in the withering chambers for adjusting the lighting of the tea leaves; the sealing mechanism comprises an L-shaped plate provided in the withering chamber and located at the bottom of the conveyor belt 1; a shielding plate slidably provided on the side of the L-shaped plate for dividing the withering chamber into two spaces; a conveyor belt 2 provided in the withering chamber and located at the bottom of the L-shaped plate; a connecting pipe provided on the side of the withering chamber for connecting to an external air pump to discharge the temperature and humidity of the bottom space of the withering chamber; and a discharge element provided at the bottom of the withering chamber for discharging the tea leaves after dehumidification.

[0008] Preferably, the temperature and humidity regulating mechanism includes a refrigeration plate, an electric heating tube and a humidifier arranged in the withering chamber, and the temperature and humidity parameters of the three withering chambers are independently set to temperature 15-18°C, humidity 85-90%; temperature 22-25°C, humidity 70-75%; temperature 28-32°C, humidity 50-55%.

[0009] Preferably, the lighting element is an LED array lamp group, and the lighting setting of the three withering chambers from top to bottom is a combination of 450nm blue light; full-spectrum white light; 660nm red light and 850nm far-infrared light.

[0010] By adopting the above technical solution, the vertical series design of the three-stage withering chamber and the independent temperature, humidity and lighting control, a coordinated optimization of the physical space and biochemical parameters is formed: in the first stage, blue light induces the increase of polyphenol oxidase activity and EGCG retention rate; in the third stage, the red light-far infrared combination increases the GABA synthesis and the tea polysaccharide content, thereby achieving the targeted enrichment of the functional components of white tea.

[0011] Preferably, a tea turning mechanism is also provided in the withering chamber for turning the tea leaves on the conveyor belt.

[0012] Preferably, the flipping mechanism includes a plurality of rotating shafts, all of which are rotatably arranged in the withering chamber and correspond to the top position of the conveyor belt; a toggle rod is sequentially arranged in the middle of the rotating shaft; and a driving member is arranged on the side of the withering chamber, for driving each rotating shaft to rotate in the withering chamber.

[0013] Preferably, the driving member includes a bilateral rack plate slidably disposed on the side surface of the withering chamber. Gears are provided at the side ends of each of the rotating shafts, and each of the gears is meshed and connected to one side of the bilateral rack plate; an incomplete gear is rotatably disposed on the side surface of the withering chamber, and the incomplete gear is meshed and connected to the other side of the bilateral rack plate. Moreover, a motor for driving the incomplete gear to rotate is provided on the side surface of the withering chamber; a spring member is provided on the side surface of the withering chamber, and the movable end of the spring member is connected to one end of the bilateral rack plate.

[0014] Preferably, a damping member is provided on the side surface of the withering chamber, and the movable end of the damping member is connected to the other end of the bilateral rack plate.

[0015] By adopting the above technical solution, during the withering process of the tea leaves, the driving member can also drive each rotating shaft to rotate, so that the stirring rods turn the tea leaves in the withering chamber, ensuring the uniformity of the withering of the tea leaves in the chamber.

[0016] Preferably, the stirring rods are made of flexible materials.

[0017] Preferably, both the first conveyor belt and the second conveyor belt are stainless steel mesh conveyor belts.

[0018] A white tea leaf with the function of reducing blood lipid is prepared by the following process:

[0019] The white tea leaves are withered in three stages by a white tea leaf preparation device.

[0020] The withered white tea leaves are subjected to a drying treatment.

[0021] Finally, packaging is carried out.

[0022] In summary, the present invention includes the following beneficial technical effects:

[0023] 1. Place the tea leaves in the first withering chamber and spread them out by conveyor belt 1 inside. Then, let the first withering chamber wither the tea leaves (for 12 hours). After the withering time is up, move them into the L-shaped plate through the shielding plate, and conveyor belt 1 transports the tea leaves onto conveyor belt 2 for further transportation. After all the tea leaves are transported on conveyor belt 1, the shielding plate moves to shield the opening of the L-shaped plate. The external air pump operates to extract the temperature and humidity in the space of conveyor belt 2, and finally discharges them into the second withering chamber (for 8 hours of withering). Similarly, discharge them into the third withering chamber (for 6 hours of withering), and discharge the tea leaves through the last withering chamber. Through this structural design, each chamber independently controls the temperature, humidity, and light parameters, solving the defect of the traditional withering process of "one-size-fits-all", ensuring the maximization of enzyme activity at each stage (such as low temperature and high humidity in the initial stage to delay oxidation, and high temperature and low humidity in the final stage to accelerate metabolism). Moreover, an airtight transition door (sealing mechanism) is set between the chambers to avoid cross-interference of temperature and humidity.

[0024] 2. Through the vertical series design of the three-stage withering chambers and independent control of temperature, humidity, and light, a collaborative optimization of physical space and biochemical parameters is formed: in the first stage, blue light induces an increase in the activity of polyphenol oxidase and an increase in the retention rate of EGCG; in the third stage, the combination of red light and far-infrared light increases the synthesis amount of GABA and the content of tea polysaccharides, achieving the directional enrichment of functional components in white tea.

[0025] 3. During the withering process of the tea leaves, the driving member can also drive each rotating shaft to rotate, so that the stirring rods turn the tea leaves in the withering chamber to ensure the uniformity of the withering of the tea leaves in the chamber.

[0026] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of a white tea leaf preparation device in an embodiment of the present invention;

[0028] Figure 2 is a schematic structural diagram of the other side of a white tea leaf preparation device in an embodiment of the present invention;

[0029] Figure 3 is a schematic structural diagram of the inside of a white tea leaf preparation device in an embodiment of the present invention;

[0030] Figure 4 is a schematic unfolded structural diagram of a white tea leaf preparation device in an embodiment of the present invention;

[0031] Figure 52 is a schematic diagram of the structure inside the withering chamber in an embodiment of the present invention;

[0032] Figure 6 yes Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0033] Explanation of the reference numerals: 1. Withering chamber; 2. Sealing mechanism; 200. L-shaped plate; 201. Shielding plate; 202. Conveyor belt 2; 203. Connecting pipe; 204. Discharge member; 3. Conveyor belt 1; 4. Temperature and humidity adjustment mechanism; 5. LED array light group; 6. Flipping mechanism; 600. Rotating shaft; 601. Toggle lever; 602. Double-sided rack plate; 603. Gear; 604. Incomplete gear; 605. Spring member; 606. Damping member. DETAILED DESCRIPTION

[0034] The following is combined with Figures 1 to 6 The present invention is described in further detail.

[0035] It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any size is only illustrative and not restrictive. In addition, the same reference symbol is used for the same structure, element or accessory appearing in more than two figures to reflect similar features.

[0036] Embodiment 1

[0037] The embodiment of the present invention discloses a white tea leaf preparation device. Figures 1 to 6 A white tea preparation device comprises at least three withering cabins 1, the withering cabins 1 are connected in sequence from top to bottom, and a sealing mechanism 2 is provided in the connecting area of the withering cabins 1, and a conveyor belt 3 is provided inside each withering cabin 1 for conveying and placing tea leaves; a temperature and humidity adjustment mechanism 4 corresponding to the number of withering cabins 1 is arranged in the withering cabin 1 for adjusting the temperature and humidity required for the tea leaves; a lighting element corresponding to the number of withering cabins 1 is arranged in the withering cabin 1 for adjusting the lighting of the tea leaves;

[0038] like Figure 5As shown in the figure, the sealing mechanism 2 includes an L-shaped plate 200, a shielding plate 201, a second conveyor belt 202, a connecting pipe 203, and a discharging member 204; the L-shaped plate 200 is arranged in the withering chamber 1 and is located at the bottom of the first conveyor belt 3; the shielding plate 201 is slidably arranged on the side surface of the L-shaped plate 200, and the sliding of the shielding plate 201 is driven by an electric push rod, and is used to divide the withering chamber 1 into two spaces; the second conveyor belt 202 is arranged in the withering chamber 1 and is located at the bottom of the L-shaped plate 200; the connecting pipe 203 is arranged on the side surface of the withering chamber 1 and is used to connect an external air pump to discharge the temperature and humidity in the bottom space of the withering chamber 1; the discharging member 204 is arranged at the bottom of the withering chamber 1 and is used to discharge the tea leaves after removing the temperature and humidity.

[0039] Specifically, the tea leaves are placed in the first withering chamber 1 and are conveyed and spread out by the first conveyor belt 3 inside. Then, the tea leaves are withered in the first withering chamber 1 (for 12 hours). When the withering time is up, they move into the L-shaped plate 200 through the shielding plate 201, and the first conveyor belt 3 conveys the tea leaves onto the second conveyor belt 202, and the second conveyor belt 202 conveys them. After the tea leaves are completely conveyed on the first conveyor belt 3, the shielding plate 201 moves to shield the opening of the L-shaped plate 200. The external air pump works to extract the temperature and humidity in the space of the second conveyor belt 202, and finally discharges them into the second withering chamber 1 (for 8 hours of withering) through the discharging member 204. Similarly, they are discharged into the third withering chamber 1 (for 6 hours of withering), and are discharged through the last withering chamber 1. Through this structural design, the temperature, humidity, and light parameters of each chamber are independently controlled, solving the defect of the traditional withering process of "one-size-fits-all", ensuring the maximization of enzyme activity at each stage (such as low temperature and high humidity in the initial stage to delay oxidation, and high temperature and low humidity in the final stage to accelerate metabolism). Moreover, an airtight transition door (sealing mechanism 2) is arranged between the chambers to avoid cross-interference of temperature and humidity.

[0040] Specifically, the temperature and humidity adjustment mechanism 4 includes a refrigeration sheet, an electric heating tube, and a humidifier arranged in the withering chamber 1, and the temperature and humidity parameters of the three withering chambers 1 are independently set as follows: temperature 15 - 18 °C, humidity 85 - 90%; temperature 22 - 25 °C, humidity 70 - 75%; temperature 28 - 32 °C, humidity 50 - 55%. The lighting member is an LED array lamp group 5, and the lighting settings from top to bottom of the three withering chambers 1 are as follows: 450 nm blue light; full-spectrum white light; a combination of 660 nm red light and 850 nm far-infrared light.

[0041] The tea leaves are subjected to multi-stage gradient withering in three withering chambers 1 in sequence, and the time, temperature and light conditions in each withering chamber 1 are different. In the first stage, blue light (450-470nm) specifically activates the activity of polyphenol oxidase, and combined with low temperature and high humidity (15-18°C / 85-90%), it delays the excessive oxidation of tea polyphenols, thereby increasing the total flavonoid content and the proportion of EGCG. In the third stage, red light (650-670nm) and far infrared (800-850nm) are combined to penetrate deep into the tea leaves, promote the synthesis of gamma-aminobutyric acid (GABA), and cooperate with tea polysaccharides to enhance the lipid-lowering effect.

[0042] Through the vertical series design of the three-stage withering chamber 1 and independent temperature, humidity and light control, the coordinated optimization of physical space and biochemical parameters is formed: in the first stage, blue light (450nm) induces the increase of polyphenol oxidase activity and EGCG retention rate; in the third stage, the red light-far infrared combination increases the GABA synthesis and the tea polysaccharide content, thereby achieving the directional enrichment of the functional components of white tea.

[0043] Embodiment 2

[0044] This embodiment is further optimized on the basis of the above embodiment, and the same parts as the above technical solution will not be repeated here. Figure 5 with Figure 6 As shown, in order to better realize the present invention, the following arrangement is particularly adopted: in the embodiment of the present application, a tea turning mechanism 6 is also provided in the withering chamber 1 for turning the tea leaves on the conveyor belt 3.

[0045] As Figure 5 and Figure 6 As shown, the turning mechanism 6 includes a plurality of rotating shafts 600, all of which are rotatably arranged in the withering chamber 1 and correspond to the top position of the conveyor belt 3; a toggle rod 601 is sequentially arranged in the middle of the rotating shaft 600; and a driving member is arranged on the side of the withering chamber 1, and is used to drive each rotating shaft 600 to rotate in the withering chamber 1.

[0046] Specifically, during the withering process of tea leaves, the driving member can also drive each rotating shaft 600 to rotate, so that the toggle rod 601 turns over the tea leaves in the withering chamber 1, thereby ensuring the uniformity of withering of the tea leaves in the chamber.

[0047] like Figure 6As shown in the figure, the driving member includes a bilateral rack plate 602 slidably disposed on the side of the withering chamber 1. A gear 603 is provided at the side end of each rotating shaft 600, and each gear 603 is meshed and connected to one side of the bilateral rack plate 602; an incomplete gear 604 is rotatably disposed on the side of the withering chamber 1, and the incomplete gear 604 is meshed and connected to the other side of the bilateral rack plate 602, and a motor for driving the incomplete gear 604 to rotate is provided on the side of the withering chamber 1; a spring member 605 (spring telescopic rod) is provided on the side of the withering chamber 1, and the movable end of the spring member 605 is connected to one end of the bilateral rack plate 602.

[0048] Specifically, for the use of the driving member, the motor drives the incomplete gear 604 to rotate, causing the bilateral rack plate 602 to move, thereby driving each gear 603 to rotate and causing the rotating shaft 600 to rotate. When the bilateral rack plate 602 moves, the spring member 605 will be stretched. When the incomplete gear 604 is separated from the bilateral rack plate 602, the spring member 605 will contract, thereby driving the bilateral rack plate 602 to reset. Thus, the bilateral rack plate 602 drives each rotating shaft 600 to rotate and reset. Through this structural design, the toggle rod 601 can regularly turn the tea leaves in the withering chamber 1.

[0049] As Figure 6 shown in the figure, a damping member 606 (damping rod) is provided on the side of the withering chamber 1, and the movable end of the damping member 606 is connected to the other end of the bilateral rack plate 602.

[0050] By providing the damping member 606, the bilateral rack plate 602 can be slowly moved and reset, which can avoid the situation that the reset speed of the bilateral rack plate 602 is unstable and damages the tea leaves.

[0051] Specifically, the toggle rod 601 is made of a flexible material.

[0052] Specifically, both the conveyor belt 1 3 and the conveyor belt 2 202 are stainless steel mesh conveyor belts.

[0053] Specifically, the control method of the present invention is controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art, and the control method and circuit connection will not be elaborated in detail here.

[0054] Embodiment 3

[0055] The embodiment of the present invention discloses a white tea leaf with a blood lipid-lowering function. A white tea leaf with a blood lipid-lowering function is prepared by the following process:

[0056] The white tea leaves are withered in three stages by the above-mentioned white tea leaf preparation device; the withered white tea leaves are dried; finally, they are packaged.

[0057] All the standard parts used in the present invention can be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0058] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more unless otherwise specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms such as "mounted", "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below", and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0061] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not have to be directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0062] In the accompanying drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference may be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention may be combined with each other.

[0063] Although the present invention 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 perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A white tea leaf preparation device, characterized in that, Including: At least three withering chambers (1), which are connected in sequence from top to bottom, and a sealing mechanism (2) is arranged in the connected area of the withering chambers (1). A conveyor belt one (3) is arranged inside each withering chamber (1) for conveying and placing tea leaves; Temperature and humidity adjustment mechanisms (4) corresponding to the number of withering chambers (1), which are arranged in the withering chambers (1) for adjusting the temperature and humidity required for tea leaves; Lighting components corresponding to the number of withering chambers (1), which are arranged in the withering chambers (1) for adjusting the lighting of tea leaves; The sealing mechanism (2) includes: An L-shaped plate (200), which is arranged inside the withering chamber (1) and is located at the bottom of the conveyor belt one (3); A shielding plate (201), which is slidably arranged on the side of the L-shaped plate (200) for dividing the inside of the withering chamber (1) into two spaces; A conveyor belt two (202), which is arranged inside the withering chamber (1) and is located at the bottom of the L-shaped plate (200); A connecting pipe (203), which is arranged on the side of the withering chamber (1) for connecting an external air pump to discharge the temperature and humidity of the bottom space of the withering chamber (1); A discharging component (204), which is arranged at the bottom of the withering chamber (1) for discharging the tea leaves after removing the temperature and humidity.

2. The white tea leaf preparation device according to claim 1, characterized in that: The temperature and humidity adjustment mechanism (4) includes a refrigerating sheet, an electric heating tube and a humidifier arranged inside the withering chamber (1), and the temperature and humidity parameters of the three withering chambers (1) are independently set as: Temperature 15 - 18 °C, humidity 85 - 90%; Temperature 22 - 25 °C, humidity 70 - 75%; Temperature 28 - 32 °C, humidity 50 - 55%.

3. The white tea leaf preparation device according to claim 1, characterized in that: The lighting component is an LED array lamp group (5), and the lighting from top to bottom of the three withering chambers (1) is set as: 450 nm blue light; Full-spectrum white light; Combination of 660 nm red light and 850 nm far-infrared light.

4. The white tea leaf preparation device according to claim 1, wherein: A tea leaf turning mechanism (6) is also arranged inside the withering chamber (1) for turning the tea leaves on the conveyor belt one (3).

5. The white tea leaf preparation device according to claim 4, characterized in that: The turning mechanism (6) includes: A number of rotating shafts (600), which are all rotatably arranged inside the withering chamber (1) and correspond to the top position of the conveyor belt one (3); Stirring rods (601), which are sequentially arranged in the middle of the rotating shafts (600); A driving component, which is arranged on the side of the withering chamber (1) for driving each rotating shaft (600) to rotate inside the withering chamber (1).

6. The white tea leaf preparation device according to claim 5, characterized in that: The driving component includes a double-sided rack plate (602) slidably arranged on the side of the withering chamber (1). A gear (603) is arranged at the side end of each rotating shaft (600), and each gear (603) is meshed and connected with one side of the double-sided rack plate (602); An incomplete gear (604) is rotatably arranged on the side of the withering chamber (1). The incomplete gear (604) is meshed and connected with the other side of the double-sided rack plate (602), and a motor for driving the incomplete gear (604) to rotate is arranged on the side of the withering chamber (1); A spring component (605) is arranged on the side of the withering chamber (1), and the movable end of the spring component (605) is connected with one end of the double-sided rack plate (602).

7. A white tea leaf preparation device according to claim 6, characterized in that: A damping member (606) is provided on the side of the withering chamber (1), and the movable end of the damping member (606) is connected to the other end of the bilateral rack plate (602).

8. An apparatus for preparing white tea leaves according to claim 5, wherein: The toggle rod (601) is made of a flexible material.

9. The preparation device for white tea leaves according to claim 1, characterized in that: Both the first conveyor belt (3) and the second conveyor belt (202) are stainless steel mesh conveyor belts.

10. A white tea leaf with the function of reducing blood lipid, characterized in that, The white tea leaves are prepared by the following process: The white tea leaves are withered in three stages by a white tea leaf preparation device according to any one of claims 1-9. The withered white tea leaves are dried. Finally, packaging is carried out.

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