Fermentation device and fermentation method for mulberry leaf dark tea production

Abstract

The present invention provides a fermentation device for mulberry leaf dark tea production, which comprises: a fermentation frame, which is internally provided with a fermentation chamber in which mulberry leaf dark tea is fermented; the power assembly is installed on the upper end face of the fermentation frame, the power assembly comprises a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with an adjusting rod, and the adjusting rod is arranged in the fermentation cavity; the fermentation frames are arranged in the fermentation cavity at intervals, each fermentation frame comprises an outer frame, a clamping lock catch and a bottom frame, the outer frame is arranged on the upper end face of the bottom frame, the clamping lock catches are installed outside the outer frame and the bottom frame, and a fermentation assembly is arranged between the outer frame and the fermentation assembly; the mulberry leaf dark tea is placed in the fermentation frame during fermentation, the fermentation assemblies are driven by the power assembly to deform, automatic pile turning of dark tea fermentation can be completed, and the pile turning efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of tea fermentation, in particular to a fermentation device and a fermentation method for producing mulberry leaf dark tea. Background Art

[0002] In the process of making black tea, there is a key step called "pile fermentation". Simply put, it is to pile up the fresh leaves after rolling while they are still hot, and then soak them with water, so that the tea leaves are placed in a humid, hot and low-oxygen environment. In this environment, the main substances in the tea leaves, such as tea polyphenols, amino acids, and caffeine, will undergo a series of reactions, including oxidation, decomposition and synthesis. This process gives black tea a unique flavor and quality.

[0003] A tea fermentation device disclosed in application No. 202310940956.9 includes a mounting seat, a second air flow distribution member and a placement frame, the mounting seat having a mounting cavity, a plurality of first air flow distribution members are arranged at intervals in the mounting cavity, the plurality of first air flow distribution members can rotate synchronously, the first air flow distribution member is columnar as a whole, and has a first ventilation cavity inside, two ventilation members connected to the first ventilation cavity are arranged on the outer peripheral side of the first air flow distribution member, the mounting seat also has a matching cavity, the first ventilation cavity is connected to the matching cavity, a first connecting pipe connected to the matching cavity is installed on one side of the mounting seat, the first connecting pipe is suitable for introducing gas into the matching cavity, and the two ventilation members on the first air flow distribution member are in a horizontal state by driving the plurality of first air flow distribution members to rotate simultaneously, that is, the two ventilation members on the two adjacent first air flow distribution members are in a corresponding state, at this time, the hot air flow from the mounting cavity can heat the tea leaves in the placement frame, and at the same time, the tea leaves in the placement frame can be gently turned over, which is beneficial to the fermentation of the tea leaves.

[0004] In the prior art, the fermentation device cannot turn the tea leaves over and needs to be turned over manually, which seriously affects the fermentation efficiency. At the same time, the tea leaves cannot be unloaded after the fermentation is completed. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies of the prior art, the present invention provides the following technical solution: a fermentation device for producing mulberry leaf dark tea, comprising: A fermentation rack is provided with a fermentation chamber inside, and mulberry leaf dark tea is fermented inside the fermentation chamber; A power assembly is installed on the upper end surface of the fermentation rack, the power assembly includes a hydraulic cylinder, an output end of the hydraulic cylinder is fixedly connected to an adjusting rod, and the adjusting rod is arranged inside the fermentation chamber; A fermentation frame, wherein a plurality of groups of the fermentation frames are arranged at intervals inside the fermentation chamber, the fermentation frame comprises an outer frame, a clamping lock and a bottom frame, the outer frame is arranged on the upper end surface of the bottom frame, the clamping lock is installed on the outside of the outer frame and the bottom frame, and a fermentation component is arranged between the outer frame and the fermentation component; The regulating rod passes through a plurality of groups of fermentation components inside the fermentation chamber.

[0006] As a further preference, a support frame is fixedly connected inside the bottom frame, a fixing ring is fixedly connected inside the supporting frame, and an opening is provided at the top of the inner cavity of the fixing ring.

[0007] As a further preference, a positioning groove is provided on the upper end surface of the bottom frame, a storage groove is provided on the upper end surface of the bottom frame, and an elastic rope is provided inside the storage groove.

[0008] As a further preference, the fermentation component includes an elastic pad and a sleeve, the elastic pad is fixedly connected to the outside of the sleeve, the elastic pad is fixedly connected to the outside with an elastic ring, the lower end face of the elastic ring is fixedly connected to a positioning ring, the size and position of the positioning ring are adapted to the positioning groove, the upper end face of the elastic pad is provided with a plurality of groups of micropores, and a breathable ring is fixedly connected to the inside of the micropores.

[0009] As a further preference, magnets are disposed inside the fixing ring and the sleeve, and adjacent sides of the fixing ring and the sleeve repel each other magnetically.

[0010] As a further preference, one end of the elastic rope is fixedly connected to the inner wall of the storage groove, and the other end of the elastic rope is fixedly connected to the outside of the elastic ring.

[0011] As a further preference, the elastic coefficient of the elastic ring is smaller than the elastic coefficient of the elastic cushion layer, and the elastic coefficient of the elastic ring is larger than the elastic coefficient of the elastic rope.

[0012] As a further preference, an adjustment slot is provided inside the adjustment rod, two groups of blocks are slidably connected inside the adjustment slot, springs are provided on adjacent sides of the two groups of blocks, and the opposite sides of the two groups of blocks extend to the outside of the adjustment rod.

[0013] As a further preference, the outer diameter of the adjusting rod is the same as the inner diameter of the fixing ring and the sleeve, and the size and position of the clamping block are adapted to the opening.

[0014] As a further preferred embodiment, a fermentation method for mulberry leaf black tea adopts the above-mentioned fermentation device for mulberry leaf black tea production, comprising: placing the rolled mulberry leaf black tea into a fermentation frame, and after standing for a period of time, driving an adjusting rod to move upward through a hydraulic cylinder, and the adjusting rod drives the sleeve to move upward through a clamping block, thereby stretching the elastic ring and the elastic cushion layer, and the elastic cushion layer rises to the maximum height on the side close to the sleeve, and after the elastic ring is stretched, a gap will appear between the original black tea and the inner side of the outer frame, and when the elastic cushion layer is pulled up, the black tea on the surface of the elastic cushion layer close to the sleeve will roll down to fill the gap, and when the sleeve rises to a certain height The sleeve will squeeze the block into the adjusting groove, the sleeve will quickly fall over the block, the elastic ring and the elastic cushion will reset, and under the action of magnetism, the elastic ring and the elastic cushion will vibrate to loosen and flatten the black tea inside the fermentation frame, thereby completing the turning and flattening of the black tea fermentation. Repeat the turning until the black tea fermentation is completed, remove the clamping lock to separate the outer frame from the bottom frame, and then drive the adjusting rod upward through the hydraulic cylinder. The adjusting rod drives the sleeve upward through the block, the elastic rope is pulled out, and a gap will appear between the fermentation component and the inner side of the outer frame and the bottom frame. The fermentation component is pulled into a trumpet shape, and the fermented black tea will be discharged through the gap.

[0015] (II) Beneficial effects The present invention provides a fermentation device and a fermentation method for producing mulberry leaf dark tea, which have the following beneficial effects: The present invention provides a power component and a fermentation frame, wherein a clamping block is provided between a fixed ring and a sleeve. When the adjusting rod rises, the sleeve can be pulled up by the clamping block. When the sleeve is stretched, the fermentation component as a whole is pulled into a trumpet shape, and the deformation of the elastic ring is increased, so that a sufficiently large gap appears between the originally filled black tea and the inner side of the outer frame, and the black tea naturally rolls down outside the trumpet-shaped fermentation component and completes the filling of the gap, thereby completing the turning of the black tea. Furthermore, when the elastic ring, the elastic cushion layer and the elastic rope are stretched at the same time, a gap will appear between the fermentation component and the outer frame and the inner side of the outer frame, so that the black tea has enough space to flow out, and the automatic unloading of the black tea can be realized; At the same time, when the sleeve rises to a certain height, the sleeve will squeeze the block into the adjusting groove, and the sleeve will fall quickly over the block, and the elastic ring and the elastic cushion will be reset. The repulsive force of the magnet can prevent the sleeve from descending too fast and the oscillation amplitude from being too large, thereby causing the tea leaves to fly out. The elastic ring and the elastic cushion will loosen and flatten the black tea inside the fermentation frame during the oscillation process, thereby completing the turning and flattening of the black tea fermentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the fermentation device for producing mulberry leaf dark tea of ​​the present invention; Figure 2 It is a schematic diagram of the position of the fermentation frame of the present invention; Figure 3It is a schematic diagram of the bottom frame structure of the present invention; Figure 4 for Figure 3 A magnified view of the structure at A; Figure 5 It is a schematic diagram of the structure of the fermentation component of the present invention; Figure 6 This is a schematic diagram of the bottom structure of the fermentation assembly of the present invention; Figure 7 It is a schematic diagram of the structure of the adjusting rod of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the adjusting rod of the present invention.

[0017] In the figure: 100 fermentation rack, 200 hydraulic cylinder, 300 adjusting rod, 301 block, 302 adjusting slot, 303 spring, 400 fermentation frame, 401 outer frame, 402 clamping lock, 403 fermentation component, 4031 elastic ring, 4032 elastic cushion, 4033 breathable ring, 4034 sleeve, 4035 positioning ring, 404 bottom frame, 405 support frame, 406 fixing ring, 407 positioning slot, 408 storage slot, 409 elastic rope. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0023] like Figure 1-6 As shown, this embodiment provides a fermentation device for producing mulberry leaf dark tea, comprising: The fermentation rack 100 has a fermentation chamber inside, and the mulberry leaf dark tea is fermented inside the fermentation chamber; A power assembly is installed on the upper end surface of the fermentation rack 100. The power assembly includes a hydraulic cylinder 200. The output end of the hydraulic cylinder 200 is fixedly connected with an adjusting rod 300. The adjusting rod 300 is arranged inside the fermentation chamber. A fermentation frame 400, wherein a plurality of groups of fermentation frames 400 are arranged at intervals inside the fermentation chamber, wherein the fermentation frame 400 comprises an outer frame 401, a clamping lock 402 and a bottom frame 404, wherein the outer frame 401 is arranged on the upper end surface of the bottom frame 404, the clamping lock 402 is installed on the outside of the outer frame 401 and the bottom frame 404, and a fermentation component 403 is arranged between the outer frame 401 and the fermentation component 403; The adjusting rod 300 passes through several groups of fermentation components 403 inside the fermentation chamber.

[0024] Specifically, the mulberry leaf dark tea is placed inside the fermentation frame 400 during fermentation, and the fermentation component 403 is driven to deform by the power component, so that the automatic turning of the dark tea fermentation can be completed, effectively improving the efficiency of the turning.

[0025] In other embodiments, the operation of the power assembly can be controlled by timing to further improve the accuracy of the compost turning time. The timing method is a conventional technical means and will not be described in detail herein. Furthermore, a support frame 405 is fixedly connected inside the bottom frame 404 , a fixing ring 406 is fixedly connected inside the support frame 405 , and an opening is formed at the top of the inner cavity of the fixing ring 406 .

[0026] Furthermore, a positioning groove 407 is formed on the upper end surface of the bottom frame 404 , a receiving groove 408 is formed on the upper end surface of the bottom frame 404 , and an elastic rope 409 is disposed inside the receiving groove 408 .

[0027] Furthermore, the fermentation component 403 includes an elastic cushion layer 4032 and a sleeve 4034. The elastic cushion layer 4032 is fixedly connected to the outside of the sleeve 4034. The outside of the elastic cushion layer 4032 is fixedly connected to an elastic ring 4031. The lower end face of the elastic ring 4031 is fixedly connected to a positioning ring 4035. The size and position of the positioning ring 4035 are adapted to the positioning groove 407. A plurality of groups of micropores are opened on the upper end face of the elastic cushion layer 4032. A breathable ring 4033 is fixedly connected to the inside of the micropores.

[0028] Specifically, the elastic ring 4031 and the elastic cushion layer 4032 are both supporting surfaces for the fermentation of black tea. The microporous design improves the overall air permeability of the fermentation frame 400, thereby ensuring that the black tea can be better oxidized.

[0029] The breathable ring 4033 is a separately provided component, which can ensure that the size of the micropores does not change when the elastic cushion layer 4032 is stretched.

[0030] It can be understood that the height of the air ring 4033 is greater than the thickness of the elastic cushion layer 4032, so that a certain amount of moisture can be maintained above the elastic cushion layer 4032, thereby maintaining the moisture level of the black tea during fermentation.

[0031] Furthermore, magnets are disposed inside the fixing ring 406 and the sleeve 4034 , and the fixing ring 406 and the sleeve 4034 are magnetically repelled from each other on adjacent sides.

[0032] Specifically, the repulsive force of the magnet can prevent the sleeve 4034 from descending too fast and causing the oscillation amplitude to be too large, thereby causing the tea leaves to fly out.

[0033] Furthermore, one end of the elastic rope 409 is fixedly connected to the inner wall of the storage groove 408 , and the other end of the elastic rope 409 is fixedly connected to the outside of the elastic ring 4031 .

[0034] Furthermore, the elastic coefficient of the elastic ring 4031 is smaller than the elastic coefficient of the elastic cushion layer 4032 , and the elastic coefficient of the elastic ring 4031 is larger than the elastic coefficient of the elastic rope 409 .

[0035] Specifically, when the sleeve 4034 is stretched, the fermentation component 403 as a whole will be pulled into a trumpet shape, and the deformation of the elastic ring 4031 will be larger, so that a sufficiently large gap will appear between the originally filled black tea and the inner side of the outer frame 401, and the black tea will naturally roll down outside the trumpet-shaped fermentation component 403 and complete the filling of the gap, thereby completing the turning of the black tea, and because a very small external force directly acts on the black tea itself, the black tea will not be damaged during the turning process.

[0036] Furthermore, when the elastic ring 4031, the elastic cushion layer 4032 and the elastic rope 409 are stretched simultaneously, a gap will appear between the fermentation component 403 and the outer frame 401 and the inner side of the outer frame 401, so that the black tea has enough space to flow out, and the automatic unloading of the black tea can be realized.

[0037] like Figure 7-8 As shown, an adjustment slot 302 is provided inside the adjustment rod 300 , and two groups of blocks 301 are slidably connected inside the adjustment slot 302 . Springs 303 are provided on adjacent sides of the two groups of blocks 301 , and the opposite sides of the two groups of blocks 301 extend to the outside of the adjustment rod 300 .

[0038] Furthermore, the outer diameter of the adjusting rod 300 is the same as the inner diameter of the fixing ring 406 and the sleeve 4034, and the size and position of the clamping block 301 are adapted to the opening.

[0039] Specifically, the block 301 is arranged between the fixing ring 406 and the sleeve 4034. When the adjusting rod 300 rises, the sleeve 4034 can be pulled up by the block 301, thereby completing the turning and unloading of the black tea, effectively improving the efficiency of the black tea fermentation, and reducing the labor intensity of the staff.

[0040] The present embodiment also provides a fermentation method for mulberry leaf black tea, which adopts the above-mentioned fermentation device for mulberry leaf black tea production, including putting the rolled mulberry leaf black tea into the fermentation frame 400, and after standing for a period of time, the hydraulic cylinder 200 drives the adjusting rod 300 to move upward, and the adjusting rod 300 drives the sleeve 4034 to move upward through the clamping block 301, so that the elastic ring 4031 and the elastic cushion layer 4032 are stretched, and the side of the elastic cushion layer 4032 close to the sleeve 4034 rises to the maximum height, and after the elastic ring 4031 is stretched, a gap will appear between the original black tea and the inner side of the outer frame 401, and when the elastic cushion layer 4032 is pulled up, the black tea on the surface of the elastic cushion layer 4032 close to the sleeve 4034 will roll down to fill the gap, and when the sleeve 4034 rises to a certain height, the sleeve 4034 will The block 301 is squeezed into the adjusting groove 302, and the sleeve 4034 passes over the block 301 and falls down quickly, and the elastic ring 4031 and the elastic cushion layer 4032 are reset. Under the action of magnetism, the elastic ring 4031 and the elastic cushion layer 4032 will vibrate to loosen and shake the black tea inside the fermentation frame 400, thereby completing the turning and shaking of the black tea fermentation. After the turning is repeated until the black tea fermentation is completed, the clamping lock 402 is removed to separate the outer frame 401 from the bottom frame 404, and then the adjusting rod 300 is driven upward by the hydraulic cylinder 200. The adjusting rod 300 drives the sleeve 4034 to move upward through the block 301, and the elastic rope 409 is pulled out. A gap will appear between the fermentation component 403 and the inner sides of the outer frame 401 and the bottom frame 404, and the fermentation component 403 is pulled into a trumpet shape, and the fermented black tea will be discharged through the gap.

[0041] The plasma spraying device provided by the present invention is provided with a power assembly and a fermentation frame 400, wherein the clamping block 301 is provided between the fixing ring 406 and the sleeve 4034. When the adjusting rod 300 rises, the sleeve 4034 can be pulled up by the clamping block 301. When the sleeve 4034 is stretched, the fermentation assembly 403 as a whole will be pulled into a trumpet shape, and the deformation of the elastic ring 4031 will be larger, so that a sufficiently large gap will appear between the originally filled black tea and the inner side of the outer frame 401, and the black tea will naturally roll down outside the trumpet-shaped fermentation assembly 403, and the gap will be filled, thereby completing the turning of the black tea. Furthermore, when the elastic ring 4031, the elastic cushion layer 4032 and the elastic rope 409 are stretched at the same time, a gap will appear between the fermentation component 403 and the outer frame 401 and the inner side of the outer frame 401, so that the black tea has enough space to flow out, and the automatic unloading of the black tea can be realized; At the same time, when the sleeve 4034 rises to a certain height, the sleeve 4034 will squeeze the block 301 into the adjusting groove 302, and the sleeve 4034 will quickly fall over the block 301, and the elastic ring 4031 and the elastic cushion layer 4032 will be reset. The repulsive force of the magnet can prevent the sleeve 4034 from descending too fast and the oscillation amplitude is too large, thereby causing the tea leaves to fly out. During the oscillation of the elastic ring 4031 and the elastic cushion layer 4032, the black tea inside the fermentation frame 400 is loosened and shaken flat, thereby completing the turning and shaking of the black tea fermentation.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fermentation device for producing mulberry leaf dark tea, characterized in that: include: A fermentation rack (100) is provided with a fermentation chamber inside, and mulberry leaf dark tea is fermented inside the fermentation chamber; A power assembly is mounted on the upper end surface of the fermentation rack (100), the power assembly comprising a hydraulic cylinder (200), an output end of the hydraulic cylinder (200) is fixedly connected to an adjustment rod (300), and the adjustment rod (300) is arranged inside the fermentation chamber; A fermentation frame (400), wherein a plurality of groups of the fermentation frames (400) are arranged at intervals inside the fermentation chamber, the fermentation frame (400) comprising an outer frame (401), a clamping lock buckle (402) and a bottom frame (404), the outer frame (401) being arranged on an upper end surface of the bottom frame (404), the clamping lock buckle (402) being installed on the outside of the outer frame (401) and the bottom frame (404), and a fermentation component (403) being arranged between the outer frame (401) and the fermentation component (403); The adjusting rod (300) passes through a plurality of groups of fermentation components (403) inside the fermentation chamber.

2. A fermentation device for producing mulberry leaf dark tea according to claim 1, characterized in that: A support frame (405) is fixedly connected inside the bottom frame (404), a fixing ring (406) is fixedly connected inside the supporting frame (405), and an opening is provided at the top of the inner cavity of the fixing ring (406).

3. A fermentation device for producing mulberry leaf dark tea according to claim 2, characterized in that: The upper end surface of the bottom frame (404) is provided with a positioning groove (407), the upper end surface of the bottom frame (404) is provided with a storage groove (408), and an elastic rope (409) is arranged inside the storage groove (408).

4. A fermentation device for producing mulberry leaf dark tea according to claim 3, characterized in that: The fermentation component (403) comprises an elastic cushion layer (4032) and a sleeve (4034), wherein the elastic cushion layer (4032) is fixedly connected to the outside of the sleeve (4034), the elastic cushion layer (4032) is fixedly connected to the outside of the elastic cushion layer (4031), the lower end surface of the elastic ring (4031) is fixedly connected to a positioning ring (4035), the size and position of the positioning ring (4035) are adapted to the positioning groove (407), and the upper end surface of the elastic cushion layer (4032) is provided with a plurality of groups of micropores, and the micropores are fixedly connected to a breathable ring (4033) inside.

5. A fermentation device for producing mulberry leaf dark tea according to claim 4, characterized in that: Magnets are disposed inside both the fixing ring (406) and the sleeve (4034), and adjacent sides of the fixing ring (406) and the sleeve (4034) repel each other magnetically.

6. A fermentation device for producing mulberry leaf dark tea according to claim 4, characterized in that: One end of the elastic rope (409) is fixedly connected to the inner wall of the storage groove (408), and the other end of the elastic rope (409) is fixedly connected to the outside of the elastic ring (4031).

7. A fermentation device for producing mulberry leaf dark tea according to claim 6, characterized in that: The elastic coefficient of the elastic ring (4031) is smaller than the elastic coefficient of the elastic cushion layer (4032), and the elastic coefficient of the elastic ring (4031) is larger than the elastic coefficient of the elastic rope (409).

8. The fermentation device for producing mulberry leaf dark tea according to claim 4, characterized in that: An adjustment slot (302) is provided inside the adjustment rod (300), two groups of clamping blocks (301) are slidably connected inside the adjustment slot (302), springs (303) are provided on adjacent sides of the two groups of clamping blocks (301), and the opposite sides of the two groups of clamping blocks (301) extend to the outside of the adjustment rod (300).

9. A fermentation device for producing mulberry leaf dark tea according to claim 8, characterized in that: The outer diameter of the adjusting rod (300) is the same as the inner diameter of the fixing ring (406) and the sleeve (4034), and the size and position of the clamping block (301) are adapted to the opening.

10. A method for fermenting mulberry leaf dark tea, using the fermentation device for producing mulberry leaf dark tea according to any one of claims 1 to 8, characterized in that: The invention comprises placing the rolled mulberry leaf black tea into a fermentation frame (400), and after standing for a period of time, driving the adjustment rod (300) to move upward through the hydraulic cylinder (200), and the adjustment rod (300) drives the sleeve (4034) to move upward through the clamping block (301), so that the elastic ring (4031) and the elastic cushion layer (4032) are stretched, and the side of the elastic cushion layer (4032) close to the sleeve (4034) rises to the maximum height, and after the elastic ring (4031) is stretched, a gap will appear between the original black tea and the inner side of the outer frame (401), and when the elastic cushion layer (4032) is pulled upward, the black tea on the surface of the elastic cushion layer (4032) close to the sleeve (4034) will roll down to fill the gap, and when the sleeve (4034) rises to a certain height, the sleeve (4034) will squeeze the clamping block (301) into the inside of the adjustment groove (302), and the sleeve (4 034) passes over the block (301) and falls rapidly, the elastic ring (4031) and the elastic cushion layer (4032) are reset, and under the effect of magnetism, the elastic ring (4031) and the elastic cushion layer (4032) vibrate to loosen and flatten the black tea inside the fermentation frame (400), thereby completing the turning and flattening of the black tea fermentation. After the turning is repeated until the black tea fermentation is completed, the clamping lock (402) is removed to separate the outer frame (401) from the bottom frame (404), and then the hydraulic cylinder (200) drives the adjusting rod (300) to move upward, the adjusting rod (300) drives the sleeve (4034) to move upward through the block (301), the elastic rope (409) is pulled out, and a gap appears between the fermentation component (403) and the inner sides of the outer frame (401) and the bottom frame (404), the fermentation component (403) is pulled into a trumpet shape, and the fermented black tea is discharged through the gap.

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