Production equipment and production method of microbial fermentation old leaf black strip tea

Abstract

The invention provides manufacturing equipment and a manufacturing method of microbial fermentation old leaf black strip tea, and belongs to the technical field of tea processing. Comprising a rolling assembly used for uniformly and repeatedly rolling tea leaves, the rolling assembly comprises a conical barrel and a rolling barrel, the outside of the rolling barrel is fixedly connected with an air bag barrel, and the outside of the air bag barrel is in contact with the outside of the conical barrel. Through the arrangement of the rolling assembly and the air inflation assembly, tea leaves are subjected to rotary rolling through a conical barrel and an air bag barrel and are combined with multiple times of circulating rolling, the rolling uniformity of the tea leaves is remarkably improved, effective components in the tea leaves are fully released, the tea leaves are better in fragrance and taste, meanwhile, the subsequent fermentation effect is improved, and the production efficiency is improved. Meanwhile, the rolled tea leaves can be conveyed to the top of the conical barrel from the bottom of the collecting barrel through the propeller, so that the tea leaves are rolled twice or multiple times, sufficient processing is ensured, the problem that the tea leaves are not rolled in place is avoided, and the overall quality and consistency of the tea leaves are further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tea processing, and particularly relates to a production device and a production method for microbially fermented old leaf black tea strips. Background Art

[0002] Microbially fermented old leaf black tea strips are a type of tea product mainly made from coarse and old tea leaves through steps such as withering, rolling, fermentation, and drying. For coarse and old leaf raw materials, the rolling and fermentation processes are key links in tea production. During the rolling process, the mechanical force causes the tea cell walls to break, releasing the internal substances, creating good conditions for fermentation, and at the same time endowing the tea with a unique shape and quality. During the fermentation process, microorganisms are used to promote the fermentation rate of coarse and old leaf black tea, improve the quality of coarse and old leaf black tea, making the taste of coarse and old leaf black tea more mellow, the soup color more bright red, and the aroma more intense.

[0003] There are multiple problems in the use of traditional tea rolling techniques: First, traditional equipment usually relies on single or one-direction rolling methods. This design results in uneven rolling during the process. Some tea leaves are not fully rolled, causing their internal components to not be completely released, while some tea leaves are broken due to over-rolling, affecting the appearance and taste of the tea, and thus reducing the quality of the final product. Second, traditional equipment usually lacks the function of recycling and processing tea leaves that are not fully rolled or rolled unevenly, and cannot roll the tea leaves a second or multiple times to ensure that each tea leaf can achieve the ideal processing effect. This limitation leads to unstable tea processing quality, further affecting the fermentation effect of the tea, and thus affecting the flavor and quality of the final tea. Therefore, traditional rolling techniques have problems such as low efficiency, uneven quality, and poor fermentation effect in tea processing. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a production device and a production method for microbially fermented old leaf black tea strips to solve the problems of uneven rolling quality and poor rolling effect existing in the current tea rolling.

[0005] To solve the above technical problem, the present invention provides the following technical solutions:

[0006] A manufacturing device for microbial-fermented old leaf black strip tea, comprising a rolling component for uniformly and repeatedly rolling the tea leaves. The rolling component includes a conical cylinder and a rolling cylinder. An airbag cylinder is fixedly connected to the outside of the rolling cylinder. The outside of the airbag cylinder is in contact with the outside of the conical cylinder. The bottom of the conical cylinder is fixedly connected to a chassis. A plurality of fixing frames are fixedly connected to the bottom edge of the chassis. A conveying cylinder is fixedly connected to the middle of the chassis. A propeller is rotatably connected to the inside of the conveying cylinder. A collecting cylinder is fixedly connected to the bottom of the chassis. A retaining ring is fixedly connected to the top of the chassis. An inflation component is arranged on one side of the airbag cylinder. The inflation component is used to inflate the airbag cylinder, so as to adjust the pressure of the airbag cylinder on the conical cylinder and prevent broken leaves caused by excessive extrusion. A conveying component is arranged on one side of the conical cylinder. The conveying component is used to facilitate the conveying of the tea leaves to the top of the conical cylinder. A sieving component is arranged at the bottom of the chassis. The sieving component is used to sieve out tea leaves of different sizes;

[0007] Preferably, spiral pads are fixedly connected to the outsides of both the conical cylinder and the airbag cylinder. A spiral-shaped pad is fixedly connected to the top of the chassis between the conical cylinder and the retaining ring. The spiral pads and the spiral-shaped pad are made of rubber material. A plurality of hair columns are fixedly connected to the outside of the conical cylinder. The hair columns are made of rubber material.

[0008] Preferably, a conical cover is fixedly connected to the top along the edge of the chassis. The inclination angle of the side of the conical cover is equal to the inclination angle of the outside of the conical cylinder. A wavy groove is formed on the side of the retaining ring. One end of the rolling cylinder is rotatably connected to an L-shaped frame. An inclined plate is slidably connected to one side of the L-shaped frame. A connecting column is fixedly connected to one side of one end of the inclined plate. The end of the connecting column away from the inclined plate is slidably clamped in the inside of the wavy groove. A moving groove is formed on one side of the inclined plate. A sliding plate is slidably clamped in the inside of the moving groove. One side of the sliding plate is fixedly connected to one side of the L-shaped frame. The inclination angle of the inclined plate is equal to the inclination angle of the outside of the conical cylinder. A feed hole is formed in the bottom of the conveying cylinder through one side of the bottom of the chassis. A discharge hole is formed in the top of the conveying cylinder through one side of the top of the conical cylinder.

[0009] Preferably, the shaft inside the propeller penetrates through the bottom of the conveying cylinder and is rotatably connected to the middle of the bottom of the collecting cylinder. And a scraping plate is fixedly connected to one side of the bottom of the shaft inside the propeller. One side of the scraping plate is in contact with the inner wall of the collecting cylinder. The gap size between the bottom end of the conveying cylinder and the inner bottom of the collecting cylinder is adapted to the specification size of the scraping plate. The shape of the collecting cylinder is inverted conical, and the position of the top of the collecting cylinder corresponds to the position of the retaining ring. A leakage hole is formed in the inside of the chassis between the conical cylinder and the retaining ring. The bottom of the leakage hole is communicated with the top of the collecting cylinder. The collecting cylinder and the conical cover are made of transparent hard plastic.

[0010] Preferably, two connecting plates are fixedly connected to the top of the conical cylinder. The top ends of the two connecting plates are fixedly connected to a connecting shaft. The bottom end of the connecting shaft is fixedly connected to the top end of the inner shaft of the propeller. One side of the top end of the inclined plate is fixedly connected to a rotating shaft. The other side of the bottom end of the rotating shaft is fixedly connected to a connecting frame. The bottom of the connecting frame is fixedly connected to a scraping cylinder. The bottom of the scraping cylinder is in contact with the top of the chassis, and the scraping cylinder is located between the conical cylinder and the retaining ring. The top end of the rotating shaft is fixedly connected to a first umbrella-shaped gear. The top end of the connecting shaft passes through the inside of the rotating shaft and the first umbrella-shaped gear and is fixedly connected to a second umbrella-shaped gear. The second umbrella-shaped gear and the first umbrella-shaped gear are arranged in a mirror image. A third umbrella-shaped gear is meshed and connected to one side of the first umbrella-shaped gear and the second umbrella-shaped gear. The top of the second umbrella-shaped gear is rotatably connected to a Z-shaped frame. One side of the third umbrella-shaped gear passes through the middle of the Z-shaped frame through a shaft and is rotatably connected to a support frame. One side of the top of the support frame is fixedly connected to a motor. The output end of the motor passes through the top of the support frame and is fixedly connected to the shaft on one side of the third umbrella-shaped gear.

[0011] Preferably, a fixed block is fixedly connected to one side of the inclined plate. The inflation assembly includes an air injection cylinder fixedly connected to one side of the fixed block. A piston is slidably connected inside the air injection cylinder. The specification size of the piston is adapted to the specification size of the internal space of the air injection cylinder. One side of the piston is fixedly connected to a movable rod. One side of the air injection cylinder is communicated with a trachea. A U-shaped frame is fixedly connected to one side of the fixed block. The outside of the output end of the trachea is fixedly connected to a hanging ring. One side of the hanging ring is clamped inside the U-shaped frame. Threads are provided inside the output end of the trachea. The top end of the airbag cylinder is communicated with a connecting bolt. Threads are provided on the outside of the top end of the connecting bolt. The external thread specification of the connecting bolt is adapted to the internal thread specification of the output end of the trachea.

[0012] Preferably, a support rod is fixedly connected to the inside of the top end of the connecting bolt. One end of the support rod is fixedly connected to a central block. The central block is located in the middle of the connecting bolt. One side of the central block is fixedly connected to a positioning cylinder. A telescopic rod is slidably connected inside the positioning cylinder at the end away from the central block. One end of the telescopic rod is fixedly connected to a positioning disk. An abutment ring is fixedly connected to the inside of the connecting bolt. A hole is provided inside the abutment ring. The diameter of the positioning disk is larger than the diameter of the hole, and the positioning disk is located on one side of the abutment ring. One side of the positioning disk is fixedly connected to a spring. The spring is sleeved outside the telescopic rod and the positioning cylinder. The end of the spring away from the positioning disk is fixedly connected to one side of the central block.

[0013] Preferably, one side of the fixing frame is fixedly connected with a bracket. The conveying assembly includes a conveying plate fixedly connected to the top of the bracket. The conveying plate is located at an inclined angle on one side of the top of the conical cover. A telescopic plate is slidably connected inside the conveying plate. Sliding grooves are formed on both sides of the conveying plate. Clamping rods are fixedly connected to both sides of the telescopic plate. One end of the clamping rod away from the telescopic plate is slidably clamped inside the sliding groove. One side of the top of the bracket is fixedly connected with a fixing plate. A rope winding roller is rotatably connected inside the fixing plate. A fixing ring is fixedly connected to one side of the fixing plate. One side of the rope winding roller passes through the inside of the fixing ring through a shaft and is fixedly connected with a rotating wheel. A plug rod is slidably connected inside the rotating wheel. A jack is formed on one side of the fixing ring. One end of the plug rod is slidably connected inside the jack. A pulling rope is wound around the outside of the rope winding roller. One end of the pulling rope away from the rope winding roller is fixedly connected with one end of the telescopic plate. The height of the conveying plate is lower than the height of the air injection cylinder. When the plug rod is away from the jack, one end of the telescopic plate slides from inside the conveying plate to the top of the conical cylinder.

[0014] Preferably, the sieving assembly includes a first sieve cylinder, a second sieve cylinder and a bottom cylinder. The bottom cylinder is fixedly connected to the bottom of the second sieve cylinder. The top of the second sieve cylinder is fixedly connected to the bottom of the first sieve cylinder. The diameters of the first sieve cylinder and the second sieve cylinder are adapted to the diameter of the bottom cylinder. Holes are formed at the bottoms inside the first sieve cylinder and the second sieve cylinder. The size of the holes inside the first sieve cylinder is larger than the size of the holes inside the second sieve cylinder. The position of the opening at the top of the first sieve cylinder is located at the bottom of the collecting cylinder. A connecting rod is rotatably connected to the middle inside the first sieve cylinder. The top end of the connecting rod passes through the bottom of the collecting cylinder and is fixedly connected to the bottom of the shaft inside the propeller. The bottom end of the connecting rod passes through the inside of the second sieve cylinder and the bottom cylinder. One side of the collecting cylinder is rotatably connected with a discharge plate through a hinge. One side of each of the first sieve cylinder, the second sieve cylinder and the bottom cylinder is rotatably connected with a baffle through a hinge. One side of each of the first sieve cylinder, the second sieve cylinder and the bottom cylinder is fixedly connected with a discharge box at an inclined angle. The position of the baffle is located on one side of one end of the discharge box. The positions of the three discharge boxes are different. Three brush columns are rotatably connected to one side of the connecting rod through a shaft. The brush columns are made of rubber material. The bottoms of the three brush columns are respectively in contact with the bottoms inside the first sieve cylinder, the second sieve cylinder and the bottom cylinder. The materials of the first sieve cylinder, the second sieve cylinder and the bottom cylinder are all transparent rubber materials. U-shaped clamps are fixedly connected to one side of each of the first sieve cylinder, the second sieve cylinder, the bottom cylinder and the collecting cylinder. A resisting plate is rotatably connected to one side of the discharge plate and the baffle through a shaft. The outside of one end of the resisting plate is hung inside the top of the U-shaped clamp.

[0015] A method for making microbial-fermented old leaf black tea, which uses the above-mentioned equipment for making microbial-fermented old leaf black tea, includes the following steps:

[0016] S1: First, manually pick or machine-pick the coarse and old tea fresh leaves with one bud and 3 - 5 leaves, then put the coarse and old tea fresh leaves into the withering trough for withering or conduct indoor natural withering. After withering, the water content of the withered leaves is controlled at 60% - 62%.

[0017] S2: Then, dilute the β-glucosidase with a vitality of 300 U / g with warm water at 38 - 40°C, shake well and set aside. The ratio of β-glucosidase to warm water is 1:21, and the weight ratio of β-glucosidase to fresh leaves is 1:700. Then, evenly spray the diluted β-glucosidase on the withered leaves, and then conduct rolling.

[0018] S3: During rolling, convey the tea leaves from the inside of the telescopic plate to the top of the conical cylinder. At this time, start the motor to prompt the second umbrella-shaped gear and the first umbrella-shaped gear to drive the conical cylinder and the airbag cylinder to rotate respectively. At this time, the airbag cylinder will roll outside the conical cylinder. While rolling, through the set conical cover, the L-shaped frame drives the airbag cylinder to move up and down outside the conical cylinder, thereby prompting the tea leaves falling between the conical cylinder and the airbag cylinder to be rolled. At the same time, the rolled and unrolled tea leaves will be swept from the inside of the leakage hole to the inside of the collection cylinder through the scraping cylinder. At this time, the falling and feeding tea leaves are conveyed from the inside of the discharge hole to the outside of the conical cylinder again through the propeller for rolling, thereby prompting the tea leaves to be rolled repeatedly. Then, for the rolled tea leaves, by opening the discharge plate, the tea leaves are prompted to fall into the inside of the first sieve cylinder. At this time, through the sweeping of the brush column, the tea is divided into large, medium, and small sizes, and is respectively retained inside the first sieve cylinder, the second sieve cylinder, and the bottom cylinder. Then, by opening the baffle, the tea leaves are taken out.

[0019] S4: Finally, put the rolled tea leaves into indoor fermentation or ferment in a fermentation machine for 3 - 4 hours, and stir 2 - 3 times during the fermentation process. Then, dry the fermented tea leaves. The drying is carried out in two steps: the first drying at a temperature of 100°C for 20 minutes; the final drying at a temperature of 80°C for 120 minutes. After that, the water content of the dried finished tea is ≤7%.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] In the above solution, by setting the rolling assembly and the inflation assembly, through the combination of rotating rolling of the tea leaves through the conical cylinder and the airbag cylinder and multiple cyclic rolling, the rolling uniformity of the tea leaves is significantly improved, the effective components in the tea leaves are fully released, making the aroma and taste of the tea better, while improving the subsequent fermentation effect. At the same time, by setting that the rolled tea leaves can be conveyed from the bottom of the collection cylinder to the top of the conical cylinder through the propeller, the tea leaves are prompted to be rolled twice or multiple times, ensuring sufficient processing and avoiding the problem of insufficient rolling, further improving the overall quality and consistency of the tea.

[0022] By setting up an inflation component, precise control of the pressure and intensity during the rolling process is achieved by adjusting the volume of the airbag cylinder, thereby effectively optimizing the rolling process of tea leaves. It can automatically adjust the rolling intensity according to the different requirements of tea leaves, ensuring that each tea leaf is properly processed during the rolling process. At the same time, by adjusting the volume of the airbag cylinder, the inflation component enables the rolled tea leaves to pass smoothly due to the reduced volume, while the unrolled tea leaves continue to be rolled between the airbag and the conical cylinder due to their larger volume, ensuring uniform rolling. It can also effectively prevent the tea leaves from being broken due to excessive extrusion, protecting the integrity and appearance of the tea leaves.

[0023] By setting up a conveying component, the conveying of tea leaves is facilitated. During conveying, by pulling out the insertion rod from the insertion hole on one side of the fixed ring, at this time, the inertial expansion and contraction plate automatically slides out from the inside of the conveying plate, prompting one end of the expansion and contraction plate to extend towards the top of the conical cylinder. Then, the tea leaves are placed inside the expansion and contraction plate, causing the tea leaves to automatically roll onto the top of the conical cylinder, thus facilitating the conveying of tea leaves. At the same time, setting the expansion and contraction plate to be telescopic also facilitates the rotation of the inclined plate with the airbag cylinder.

[0024] By setting up a sieving component, which is composed of a first sieve cylinder, a second sieve cylinder and a bottom cylinder, the rolled tea leaf particles are classified and screened through sieve holes of different sizes to meet the requirements of different fermentation processes for raw material particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings incorporated herein and constituting part of the specification illustrate embodiments of the present disclosure and, together with the specification, are further used to explain the principles of the present disclosure and enable those skilled in the relevant art to implement and use the present disclosure.

[0026] Figure 1 is a schematic three-dimensional structure diagram of the whole invention;

[0027] Figure 2 is a schematic side-sectional view of the conical cylinder and the sieve cylinder of the invention;

[0028] Figure 3 is a schematic enlarged three-dimensional structure diagram of the conical cylinder and the airbag cylinder of the invention;

[0029] Figure 4 is a schematic connection structure diagram of the L-shaped frame and the inclined plate of the invention;

[0030] Figure 5 is of the present invention Figure 4 schematic side-sectional structure diagram;

[0031] Figure 6 is of the present invention Figure 5 schematic enlarged structure diagram at A;

[0032] Figure 7Schematic three-dimensional structure diagram of the conveying component of the present invention;

[0033] Figure 8 Schematic enlarged three-dimensional structure diagram of the conical cover of the present invention;

[0034] Figure 9 Schematic structure diagram of the connection between the collection cylinder and the chassis of the present invention;

[0035] Figure 10 Schematic three-dimensional structure diagram of the sieving component of the present invention;

[0036] Figure 11 Schematic structure diagram of the connection of the umbrella-shaped teeth of the present invention.

[0037] [Reference numerals]

[0038] 1. Conical cylinder; 2. Rolling cylinder; 3. Conveying cylinder; 4. Propeller; 5. Airbag cylinder; 6. Chassis; 7. Spiral pad; 8. Spiral pad; 9. Fixed frame; 10. Scraping cylinder; 11. Connecting frame; 12. Hair column; 13. Leakage hole; 14. Feed hole; 15. Discharge hole; 16. Connecting shaft; 17. First umbrella-shaped tooth; 18. Rotating shaft; 19. Second umbrella-shaped tooth; 20. Third umbrella-shaped tooth; 21. Z-shaped frame; 22. Support frame; 23. Motor; 24. L-shaped frame; 25. Inclined plate; 26. Slide plate; 27. Connecting column; 28. Conical cover; 29. Wave groove; 30. Air injection cylinder; 31. Movable rod; 32. Piston; 33. Air pipe; 34. Hanging ring; 35. U-shaped frame; 36. Connecting bolt; 37. Support rod; 38. Central block; 39. Positioning cylinder; 40. Telescopic rod; 41. Spring; 42. Counter ring; 43. Alignment disk; 44. Collection cylinder; 45. Discharge plate; 46. Scraper; 47. First sieve cylinder; 48. Second sieve cylinder; 49. Bottom cylinder; 50. Connecting rod; 51. Brush column; 52. Baffle; 53. Discharge box; 54. U-shaped clamp; 55. Counter plate; 56. Bracket; 57. Fixed plate; 58. Conveying plate; 59. Telescopic plate; 60. Chute; 61. Clamping rod; 62. Rope winding roller; 63. Fixed ring; 64. Runner; 65. Insertion rod; 66. Pulling rope; 67. Connecting plate; 68. Retaining ring.

[0039] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic needs and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. Detailed implementation manners

[0040] The following is a detailed description of a production device and a production method for microbial-fermented old-leaf red strip tea provided by the present invention in combination with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0041] As Figures 1 to 11 shown, an embodiment of the present invention provides a production device for microbial-fermented old-leaf red strip tea, including a rolling assembly for uniformly and repeatedly rolling the tea leaves. The rolling assembly includes a conical cylinder 1 and a rolling cylinder 2. An airbag cylinder 5 is fixedly connected to the outside of the rolling cylinder 2. The outside of the airbag cylinder 5 is in contact with the outside of the conical cylinder 1. The bottom of the conical cylinder 1 is fixedly connected to a chassis 6. A plurality of fixing frames 9 are fixedly connected to the bottom edge of the chassis 6. A conveying cylinder 3 is fixedly connected to the middle of the chassis 6. A propeller 4 is rotatably connected to the inside of the conveying cylinder 3. A collecting cylinder 44 is fixedly connected to the bottom of the chassis 6. A retaining ring 68 is fixedly connected to the top of the chassis 6. An inflation assembly is arranged on one side of the airbag cylinder 5. The inflation assembly is used to inflate the airbag cylinder 5, so as to adjust the pressure of the airbag cylinder 5 on the conical cylinder 1 and prevent broken leaves caused by excessive extrusion. A conveying assembly is arranged on one side of the conical cylinder 1. The conveying assembly is used to facilitate the conveying of the tea leaves to the top of the conical cylinder 1. A sieving assembly is arranged at the bottom of the chassis 6. The sieving assembly is used to sieve out tea leaves of different sizes.

[0042] By setting the rolling assembly and the inflation assembly, by combining the rotation rolling of the tea leaves through the conical cylinder 1 and the airbag cylinder 5 with multiple cyclic rollings, the rolling uniformity of the tea leaves is significantly improved, the effective components in the tea leaves are fully released, the aroma and taste of the tea leaves are better, and at the same time, the subsequent fermentation effect is improved. At the same time, by setting that the rolled tea leaves can be conveyed from the bottom of the collecting cylinder 44 to the top of the conical cylinder 1 through the propeller 4, the tea leaves are promoted to be rolled twice or multiple times, ensuring sufficient processing and avoiding the problem of insufficient rolling, and further improving the overall quality and consistency of the tea leaves.

[0043] As Figures 1 to 3 shown, spiral pads 7 are fixedly connected to the outsides of both the conical cylinder 1 and the airbag cylinder 5. A spiral pad 8 is fixedly connected to the top of the chassis 6 between the conical cylinder 1 and the retaining ring 68. The spiral pads 7 and the spiral pad 8 are made of rubber material. A plurality of hair columns 12 are fixedly connected to the outside of the conical cylinder 1. The hair columns 12 are made of rubber material.

[0044] Through the provided spiral gasket 7, spiral gasket 8, and bristled column 12, the flexible rubber materials of these two gaskets can play a buffering role during the rolling process, reducing the direct friction between the airbag cylinder 5 and the conical cylinder 1, as well as between the scraping cylinder 10 and the chassis 6, thereby reducing component wear and extending the service life of the equipment. At the same time, the gaskets can also effectively avoid excessive extrusion or damage to the tea leaves during rolling by slowing down the change in rolling intensity. Especially when processing tender or high-grade tea leaves, it helps to maintain the complete form of the tea leaves, improve the appearance and quality of the tea leaves. At the same time, through the provided bristled column 12, when the tea leaves fall from the top of the conical cylinder 1 downward, the bristled column 12 can temporarily block the tea leaves, avoiding the problem that the tea leaves all fall to the bottom at once and cannot be rolled. At the same time, the bristled column 12 is made of rubber material, which also facilitates the falling of the rolled tea leaves after rolling later.

[0045] As Figures 1 to 11 shown, a conical cover 28 is fixedly connected to the top along the edge of the chassis 6. The inclination angle of the side of the conical cover 28 is equal to the inclination angle of the outside of the conical cylinder 1. A wavy groove 29 is provided on the side of the retaining ring 68. One end of the rolling cylinder 2 is rotatably connected to an L-shaped frame 24. A sloping plate 25 is slidably connected to one side of the L-shaped frame 24. One side of one end of the sloping plate 25 is fixedly connected to a connecting column 27. The end of the connecting column 27 away from the sloping plate 25 is slidably clamped inside the wavy groove 29. A moving groove is provided on one side of the sloping plate 25. A sliding plate 26 is slidably clamped inside the moving groove. One side of the sliding plate 26 is fixedly connected to one side of the L-shaped frame 24. The inclination angle of the sloping plate 25 is equal to the inclination angle of the outside of the conical cylinder 1. The bottom of the conveying cylinder 3 penetrates through one side of the bottom of the chassis 6 and is provided with a feeding hole 14. The top of the conveying cylinder 3 penetrates through one side of the top of the conical cylinder 1 and is provided with a discharging hole 15. The shaft inside the propeller 4 penetrates through the bottom of the conveying cylinder 3 and is rotatably connected to the middle of the bottom of the collecting cylinder 44. And one side of the bottom of the shaft inside the propeller 4 is fixedly connected to a scraping plate 46. One side of the scraping plate 46 is in contact with the inner wall of the collecting cylinder 44. The gap size between the bottom end of the conveying cylinder 3 and the inner bottom of the collecting cylinder 44 is adapted to the specification size of the scraping plate 46. The outer shape of the collecting cylinder 44 is inverted conical, and the position of the top of the collecting cylinder 44 corresponds to the position of the retaining ring 68. A leakage hole 13 is provided inside the chassis 6 between the conical cylinder 1 and the retaining ring 68. The bottom of the leakage hole 13 is communicated with the top of the collecting cylinder 44. The materials of the collecting cylinder 44 and the conical cover 28 are transparent hard plastic.

[0046] With the set conical cover 28, L-shaped frame 24 and inclined plate 25, during rolling, first the tea leaves are conveyed to the top of the conical cylinder 1 through the conveying component. At this time, the inclined plate 25 is rotated, causing the inclined plate 25 to drive the L-shaped frame 24 to rotate. By setting the inclined plate 25 to be inclined and the inclination angle to be equal to the inclination angle outside the conical cylinder 1, the L-shaped frame 24 will drive the airbag cylinder 5 to rotate and roll along the outside of the conical cylinder 1, thereby promoting the rolling of the tea leaves between the airbag cylinder 5 and the conical cylinder 1. At the same time, by setting the wave groove 29 and the inclination angle of the conical cover 28 to be equal to the inclination angle outside the conical cylinder 1, when the inclined plate 25 moves, the connecting column 27 will slide inside the wave groove 29. At this time, the L-shaped frame 24 slides on one side of the inclined plate 25 through the sliding plate 26, and at the same time the airbag cylinder 5 will slide up and down outside the conical cylinder 1, thereby promoting that all the tea leaves outside the conical cylinder 1 can be rolled by the airbag cylinder 5. At the same time, it also promotes the up and down movement of the airbag cylinder 5 combined with the different rotation directions of the conical cylinder 1 and the inclined plate 25, ensuring that the tea leaves are evenly squeezed and sheared in multiple directions, forming tight strips, thereby improving the rolling effect while effectively retaining the aroma of the tea leaves, improving the quality of the tea. At the same time, the volume of the rolled tea leaves becomes smaller and will pass through the space between the conical cylinder 1 and the airbag cylinder 5 and fall to the top of the chassis 6. Then, through the scraping and feeding of the scraping cylinder 10, the tea leaves will fall from the inside of the material leakage hole 13 into the inside of the collection cylinder 44 for aggregation. At this time, because the tea leaves are relatively light in volume, some unrolled tea leaves will fall into the collection cylinder 44. At this time, through the sweeping of the scraping plate 46 and setting the outer shape of the collection cylinder 44 to be inverted conical, the tea leaves will aggregate at the bottom of the conveying cylinder 3. At this time, through the rotation of the propeller 4, the tea leaves will enter the conveying cylinder 3 from the inside of the feeding hole 14 and be conveyed to the top of the conveying cylinder 3 by the propeller 4. At this time, the tea leaves will be conveyed from the discharge hole 15 to the top of the conical cylinder 1, thereby promoting the repeated rolling of the tea leaves, so that each tea leaf can be fully rolled, solving the problem of uneven distribution of tea leaves in single rolling, improving the rolling uniformity and quality. At the same time, by setting the materials of the collection cylinder 44 and the conical cover 28 to be transparent hard plastics, it is convenient to observe and pick up the tea leaves.

[0047] Such as Figure 1 , Figure 2 , Figure 3 , Figure 9 and Figure 11As shown in the figure, two connecting plates 67 are fixedly connected to the top of the conical cylinder 1. The top ends of the two connecting plates 67 are fixedly connected to a connecting shaft 16. The bottom end of the connecting shaft 16 is fixedly connected to the top end of the internal shaft of the propeller 4. One side of the top end of the inclined plate 25 is fixedly connected to a rotating shaft 18. The other side of the bottom end of the rotating shaft 18 is fixedly connected to a connecting frame 11. The bottom of the connecting frame 11 is fixedly connected to a scraping cylinder 10. The bottom of the scraping cylinder 10 is in contact with the top of the chassis 6, and the position of the scraping cylinder 10 is located between the conical cylinder 1 and the retaining ring 68. The top end of the rotating shaft 18 is fixedly connected to a first umbrella-shaped gear 17. The top end of the connecting shaft 16 penetrates through the rotating shaft 18 and the inside of the first umbrella-shaped gear 17 and is fixedly connected to a second umbrella-shaped gear 19. The second umbrella-shaped gear 19 and the first umbrella-shaped gear 17 are arranged in a mirror image. A third umbrella-shaped gear 20 is meshed with one side of the first umbrella-shaped gear 17 and the second umbrella-shaped gear 19. The top of the second umbrella-shaped gear 19 is rotatably connected to a Z-shaped frame 21. One side of the third umbrella-shaped gear 20 passes through the middle of the Z-shaped frame 21 through a shaft and is rotatably connected to a support frame 22. One side of the top of the support frame 22 is fixedly connected to a motor 23. The output end of the motor 23 penetrates through the top of the support frame 22 and is fixedly connected to the shaft on one side of the third umbrella-shaped gear 20.

[0048] By setting the first umbrella-shaped gear 17 and the second umbrella-shaped gear 19, during kneading, first start the air pipe 33 to prompt the third umbrella-shaped gear 20 to drive the second umbrella-shaped gear 19 and the first umbrella-shaped gear 17 to rotate. At this time, the second umbrella-shaped gear 19 drives the conical cylinder 1 and the propeller 4 to rotate through the connecting shaft 16, which facilitates the rotational kneading and repeated kneading of the tea leaves. At the same time, the first umbrella-shaped gear 17 will drive the inclined plate 25 and the connecting frame 11 to rotate through the rotating shaft 18, which promotes the airbag cylinder 5 to roll outside the conical cylinder 1, and the connecting frame 11 drives the scraping cylinder 10 to scrape the tea leaves on the top of the chassis 6 into the material leakage hole 13. At the same time, by setting the retaining ring 68, the tea leaves falling from the top of the conical cylinder 1 are gathered between the conical cylinder 1 and the retaining ring 68, which facilitates the scraping and feeding of the scraping cylinder 10. At the same time, by setting the first umbrella-shaped gear 17 and the second umbrella-shaped gear 19 in a mirror image, the conical cylinder 1 and the inclined plate 25 rotate in opposite directions, which generates torsion between the conical cylinder 1 and the airbag cylinder 5, thus facilitating the kneading of the tea leaves.

[0049] As Figures 1 to 6As shown, a fixed block is fixedly connected to one side of the inclined plate 25. The inflation assembly includes an air injection cylinder 30 fixedly connected to one side of the fixed block. A piston 32 is slidably connected inside the air injection cylinder 30. The specification and dimension of the piston 32 are adapted to the specification and dimension of the internal space of the air injection cylinder 30. A movable rod 31 is fixedly connected to one side of the piston 32. One side of the air injection cylinder 30 is communicated with an air pipe 33. A U-shaped frame 35 is fixedly connected to one side of the fixed block. A hanging ring 34 is fixedly connected to the outside of the output end of the air pipe 33. One side of the hanging ring 34 is clamped inside the U-shaped frame 35. Threads are provided inside the output end of the air pipe 33. The top end of the airbag cylinder 5 is communicated with a connecting bolt 36. Threads are provided on the outside of the top end of the connecting bolt 36. The external thread specification of the connecting bolt 36 is adapted to the internal thread specification of the output end of the air pipe 33. A support rod 37 is fixedly connected to the inside of the top end of the connecting bolt 36. One end of the support rod 37 is fixedly connected to a central block 38. The central block 38 is located in the middle of the connecting bolt 36. A positioning cylinder 39 is fixedly connected to one side of the central block 38. A telescopic rod 40 is slidably connected inside the positioning cylinder 39 at the end far from the central block 38. One end of the telescopic rod 40 is fixedly connected to an alignment disk 43. An abutment ring 42 is fixedly connected to the inside of the connecting bolt 36. A hole is provided inside the abutment ring 42. The diameter of the alignment disk 43 is larger than the diameter of the hole, and the alignment disk 43 is located on one side of the abutment ring 42. A spring 41 is fixedly connected to one side of the alignment disk 43. The spring 41 is sleeved outside the telescopic rod 40 and the positioning cylinder 39. One end of the spring 41 far from the alignment disk 43 is fixedly connected to one side of the central block 38.

[0050] Through the provided inflation component, by adjusting the volume of the airbag cylinder 5, precise control of the pressure and intensity during the rolling process is achieved, thereby effectively optimizing the rolling process of tea leaves. It can automatically adjust the rolling intensity according to the different requirements of tea leaves to ensure that each tea leaf is properly processed during the rolling process. At the same time, by adjusting the volume of the airbag cylinder 5, the inflation component enables the rolled tea leaves to pass smoothly due to their reduced volume, while the unrolled tea leaves continue to be rolled between the airbag and the conical cylinder 1 due to their larger volume, ensuring uniform rolling. It can also effectively prevent the tea leaves from being broken due to excessive extrusion, protecting the integrity and appearance of the tea leaves. When inflating, first connect one end of the air pipe 33 to one end of the connecting bolt 36 through a thread. At this time, by pulling the movable rod 31, the piston 32 is prompted to squeeze the gas to inflate into the interior of the airbag cylinder 5 through the air pipe 33, thereby prompting the volume of the airbag cylinder 5 to increase, which in turn prompts the airbag cylinder 5 to fit more closely to the outside of the conical cylinder 1, thus increasing the rolling force of the tea leaves and enabling the tea leaves to be rolled with the highest efficiency. At the same time, through the provided alignment plate 43 and the abutting ring 42, when inflating, the gas will press against the alignment plate 43, prompting the alignment plate 43 to stretch the spring 41. At this time, a gap will be generated between the alignment plate 43 and the abutting ring 42, facilitating the entry of gas. At the same time, when there is no gas input, the spring 41 drives the alignment plate 43 to contract, thereby avoiding the problem of sudden gas leakage during the inflation process. At the same time, when reducing the volume of the airbag cylinder 5 later, by poking the alignment plate 43 with a small needle, the alignment plate 43 is prompted to move away from the side of the abutting ring 42, thereby prompting the gas inside the airbag cylinder 5 to be released, reducing the volume of the airbag cylinder 5, and avoiding overly intense rolling between the airbag cylinder 5 and the conical cylinder 1. At the same time, through the provided U-shaped bracket 35, when not inflating later, the air pipe 33 can be hung on the U-shaped bracket 35 using the hanging ring 34, facilitating the rotation of the airbag cylinder 5 and the rotation of the inclined plate 25.

[0051] Such as Figure 1 And Figure 7As shown in the figure, one side of the fixing frame 9 is fixedly connected with a support 56. The conveying assembly includes a conveying plate 58 fixedly connected to the top of the support 56. The conveying plate 58 is located at an inclined angle on one side of the top of the conical cover 28. A telescopic plate 59 is slidably connected inside the conveying plate 58. Chute grooves 60 are opened on both sides of the conveying plate 58. Clamping rods 61 are fixedly connected to both sides of the telescopic plate 59. One end of the clamping rod 61 away from the telescopic plate 59 is slidably clamped inside the chute groove 60. One side of the top of the support 56 is fixedly connected with a fixing plate 57. A rope winding roller 62 is rotatably connected inside the fixing plate 57. One side of the fixing plate 57 is fixedly connected with a fixing ring 63. One side of the rope winding roller 62 passes through the inside of the fixing ring 63 through a shaft and is fixedly connected with a runner 64. A plug rod 65 is slidably connected inside the runner 64. An insertion hole is opened on one side of the fixing ring 63. One end of the plug rod 65 is slidably connected inside the insertion hole. A pulling rope 66 is wound around the outside of the rope winding roller 62. One end of the pulling rope 66 away from the rope winding roller 62 is fixedly connected with one end of the telescopic plate 59. The height of the conveying plate 58 is lower than the height of the air injection cylinder 30. When the plug rod 65 is away from the insertion hole, one end of the telescopic plate 59 slides out of the inside of the conveying plate 58 to the top of the conical cylinder 1.

[0052] By providing the conveying assembly, the conveying of tea leaves is facilitated. During conveying, by pulling out the plug rod 65 from the insertion hole on one side of the fixing ring 63, at this time, due to gravity inertia, the telescopic plate 59 automatically slides out of the inside of the conveying plate 58. At the same time, the clamping rod 61 will slide inside the chute groove 60, thereby avoiding the problem that the telescopic plate 59 completely moves out of the inside of the conveying plate 58, and prompting one end of the telescopic plate 59 to extend towards the top of the conical cylinder 1. At this time, the tea leaves are placed inside the telescopic plate 59, causing the tea leaves to automatically roll to the top of the conical cylinder 1, thus facilitating the conveying of tea leaves. At the same time, setting the telescopic plate 59 to be telescopic also facilitates the rotation of the inclined plate 25 with the air bag cylinder 5, avoiding the problem that the telescopic plate 59 blocks the movement of the air bag cylinder 5. When retracting the telescopic plate 59, by rotating the runner 64, the rope winding roller 62 is prompted to pull the pulling rope 66 to contract. At this time, the telescopic plate 59 will move to the inside of the conveying plate 58. At this time, the plug rod 65 is inserted into the insertion hole again, thereby avoiding the problem that the telescopic plate 59 moves out of the inside of the conveying plate 58 and affecting the movement of the air bag cylinder 5.

[0053] Such as Figure 1 、 Figures 2 to 10As shown, the sieving assembly includes a first sieve cylinder 47, a second sieve cylinder 48, and a bottom cylinder 49. The bottom cylinder 49 is fixedly connected to the bottom of the second sieve cylinder 48. The top of the second sieve cylinder 48 is fixedly connected to the bottom of the first sieve cylinder 47. The diameters of the first sieve cylinder 47 and the second sieve cylinder 48 are adapted to the diameter of the bottom cylinder 49. Holes are provided at the bottoms inside the first sieve cylinder 47 and the second sieve cylinder 48. The size of the holes inside the first sieve cylinder 47 is larger than the size of the holes inside the second sieve cylinder 48. The position of the opening at the top of the first sieve cylinder 47 is located at the bottom of the collection cylinder 44. A connecting rod 50 is rotatably connected to the middle inside the first sieve cylinder 47. The top end of the connecting rod 50 penetrates through the bottom of the collection cylinder 44 and is fixedly connected to the bottom of the inner shaft of the propeller 4. The bottom end of the connecting rod 50 penetrates through the inside of the second sieve cylinder 48 and the bottom cylinder 49. One side of the collection cylinder 44 is rotatably connected to a discharge plate 45 through a hinge. One side of each of the first sieve cylinder 47, the second sieve cylinder 48, and the bottom cylinder 49 is rotatably connected to a baffle 52 through a hinge. One side of each of the first sieve cylinder 47, the second sieve cylinder 48, and the bottom cylinder 49 is fixedly connected to a discharge box 53 at an inclined angle. The position of the baffle 52 is on one side of one end of the discharge box 53. The positions of the three discharge boxes 53 are different. One side of the connecting rod 50 is rotatably connected to three brush columns 51 through a shaft. The brush columns 51 are made of rubber material. The bottoms of the three brush columns 51 are respectively in contact with the bottoms inside the first sieve cylinder 47, the second sieve cylinder 48, and the bottom cylinder 49. The materials of the first sieve cylinder 47, the second sieve cylinder 48, and the bottom cylinder 49 are all transparent rubber materials. One side of each of the first sieve cylinder 47, the second sieve cylinder 48, the bottom cylinder 49, and the collection cylinder 44 is fixedly connected to a U-shaped clamp 54. One side of the discharge plate 45 and the baffle 52 is rotatably connected to a resisting plate 55 through a shaft. The outside of one end of the resisting plate 55 is hung inside the top of the U-shaped clamp 54.

[0054] Through the provided sieving component, which is jointly composed of the first sieve cylinder 47, the second sieve cylinder 48, and the bottom cylinder 49, the rolled tea particles are classified and screened through sieve holes of different sizes to meet the requirements of raw material particles for different fermentation processes. When all the tea is rolled, at this time, the abutting plate 55 on one side of the discharge plate 45 is removed from the U-shaped clamp 54 on one side of the collection cylinder 44, prompting the discharge plate 45 to be opened. At this time, through the sweeping of the scraper 46, the tea is input from the discharge plate 45 to the top of the first sieve cylinder 47. At this time, by setting the connecting rod 50 to be fixedly connected to the bottom end of the propeller 4, when the connecting rod 50 rotates, the brush column 51 will rotate inside the first sieve cylinder 47, prompting the brush column 51 to sweep the tea. At this time, the tea smaller than the holes inside the first sieve cylinder 47 will fall into the second sieve cylinder 48. At the same time, the brush column 51 inside the second sieve cylinder 48 will sweep, prompting the tea smaller than the holes inside the second sieve cylinder 48 to fall into the bottom cylinder 49, thereby prompting the tea to be divided into three parts: large, medium, and small, which is beneficial to the fermentation of tea of different specifications in the later stage. After that, one end of the abutting plate 55 is removed from the top of the U-shaped clamp 54 to open the baffle 52. At this time, by setting the brush column 51 inside the first sieve cylinder 47, the second sieve cylinder 48, and the bottom cylinder 49, it is convenient to take the tea. When the brush column 51 sweeps the tea to one side of the baffle 52, at this time, the tea is scraped out from the discharge box 53 by hand or a rake. At the same time, by setting the three discharge boxes 53 in different directions, it is convenient to collect tea of different sizes.

[0055] An embodiment of the present invention also provides a method for making microbial-fermented old leaf red strip tea, applying the above-mentioned equipment for making microbial-fermented old leaf red strip tea, including the following steps:

[0056] S1: First, handpick or machine-pick the coarse and old tea fresh leaves with one bud and 3 - 5 leaves, and then put the coarse and old tea fresh leaves into a withering trough for withering or indoor natural withering. After withering, the water content of the withered leaves is controlled at 60% - 62%.

[0057] S2: Then, the β-glucosidase with an activity of 300 U / g is diluted and shaken well with warm water at 38 - 40°C for standby. The ratio of β-glucosidase to warm water is 1:21, and the weight ratio of β-glucosidase to fresh leaves is 1:700. Then, the diluted β-glucosidase is evenly sprayed on the withered leaves, and then kneading is carried out.

[0058] S3: During rolling, the tea leaves are conveyed from the inside of the telescopic plate 59 to the top of the conical cylinder 1. At this time, the motor 23 is started to drive the second umbrella-shaped gear 19 and the first umbrella-shaped gear 17 to rotate the conical cylinder 1 and the airbag cylinder 5 respectively. At this time, the airbag cylinder 5 will roll outside the conical cylinder 1. While rolling, the L-shaped frame 24 drives the airbag cylinder 5 to move up and down outside the conical cylinder 1 through the set conical cover 28, so as to knead the tea leaves that fall between the conical cylinder 1 and the airbag cylinder 5. At the same time, the kneaded and un-kneaded tea leaves will be swept from the inside of the leakage hole 13 to the inside of the collection cylinder 44 through the scraping cylinder 10. At this time, the falling tea leaves are conveyed from the inside of the discharge hole 15 to the outside of the conical cylinder 1 again through the propeller 4 for kneading, so as to knead the tea leaves repeatedly. Then, the kneaded tea leaves are dropped into the inside of the first sieve cylinder 47 by opening the discharge plate 45. At this time, through the sweeping of the brush column 51, the tea is divided into large, medium and small sizes, and stays in the first sieve cylinder 47, the second sieve cylinder 48 and the bottom cylinder 49 respectively. After that, by opening the baffle 52, the tea leaves are taken out;

[0059] S4: Finally, the kneaded tea leaves are put into the room for fermentation or fermented by a fermenter for 3 - 4 hours. During the fermentation process, they are turned and mixed 2 - 3 times. Then, the fermented tea leaves are dried. The drying is carried out in two steps: the first drying (rough drying) at a temperature of 100 °C for 20 minutes and the second drying (final drying) at a temperature of 80 °C for 120 minutes. After that, the water content of the dried finished tea is ≤ 7%.

[0060] Using the above method for making microbiologically fermented old leaf black strip tea, compared with the prior art: Firstly, in the present invention, β-glucosidase is used as a catalyst, which helps to accelerate the fermentation process of coarse and old leaf black tea. By promoting the transformation of polyphenols in tea leaves, β-glucosidase accelerates the chemical reactions of tea leaves, significantly improving the fermentation rate of tea leaves. This not only shortens the subsequent fermentation time but also increases the generation of aroma components and flavor substances in tea leaves, making the flavor of tea leaves richer and more mellow. When β-glucosidase is sprayed on withered leaves, it hydrolyzes cellulose and hemicellulose in the tea leaf cell wall, reducing the leaf hardness, enabling the subsequent flexible pressure of the airbag cylinder to more efficiently break cells and release internal substances such as polyphenols and aroma, thus promoting the release of aromatic substances in tea leaves by the application of β-glucosidase, making the taste of tea leaves softer, reducing bitterness, and improving the quality of the final tea. Secondly, the rolling component plays a key role in tea leaf processing by precisely adjusting the rolling intensity and pressure. The design of the inflation component can adjust the volume of the airbag according to the type of tea leaves and processing requirements, thereby controlling the pressure during the rolling process and avoiding uneven rolling or over-rolling. This design ensures the uniform rolling of tea leaves, fully releasing the effective components in tea leaves and creating ideal conditions for the fermentation process.

[0061] The present invention covers any alternatives, modifications, equivalent methods and solutions made within the spirit and scope of the present invention. For the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention without the description of these details.

[0062] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A production device for microbial fermentation of old leaf black tea, characterized in that: The invention comprises a kneading assembly for uniformly and repeatedly kneading tea leaves, the kneading assembly comprising a conical cylinder (1) and a kneading cylinder (2), the outside of the kneading cylinder (2) is fixedly connected to an air bag cylinder (5), the outside of the air bag cylinder (5) is in contact with the outside of the conical cylinder (1), the bottom of the conical cylinder (1) is fixedly connected to a chassis (6), the bottom of the edge of the chassis (6) is fixedly connected to a plurality of fixing frames (9), the middle of the chassis (6) is fixedly connected to a conveying cylinder (3), the inside of the conveying cylinder (3) is rotatably connected to a propeller (4), the bottom of the chassis (6) is fixedly connected to a collecting cylinder (44), and the top of the chassis (6) is fixedly connected to a retaining ring (68); An inflation component is provided on one side of the airbag tube (5), and the inflation component is used to inflate the airbag tube (5), thereby adjusting the pressure of the airbag tube (5) on the conical tube (1) to prevent excessive squeezing from causing leaf crushing; A conveying assembly is provided on one side of the conical cylinder (1), and the conveying assembly is used to facilitate the conveying of tea leaves to the top of the conical cylinder (1); A sieving component is arranged at the bottom of the chassis (6), and the sieving component is used to sift out tea leaves of different sizes.

2. The production equipment of microbial fermented old leaf black tea according to claim 1, characterized in that: The outside of the conical tube (1) and the airbag tube (5) are both fixedly connected with a spiral pad (7); the top of the chassis (6) located between the conical tube (1) and the retaining ring (68) is fixedly connected with a vortex pad (8); the material of the spiral pad (7) and the vortex pad (8) is rubber; the outside of the conical tube (1) is fixedly connected with a plurality of hair columns (12); the material of the hair columns (12) is rubber.

3. The production equipment of microbial fermented old leaf black tea according to claim 1, characterized in that: The top of the chassis (6) is fixedly connected with a conical cover (28), the inclination angle of the side of the conical cover (28) is equal to the inclination angle of the outside of the conical cylinder (1), the side of the retaining ring (68) is provided with a wave groove (29), one end of the kneading cylinder (2) is rotatably connected with an L-shaped frame (24), one side of the L-shaped frame (24) is slidably connected with an inclined plate (25), one side of one end of the inclined plate (25) is fixedly connected with a connecting column (27), and the end of the connecting column (27) away from the inclined plate (25) is connected to the wave groove (29). The groove (29) is internally slidably engaged, a movable groove is provided on one side of the inclined plate (25), a slide plate (26) is internally slidably engaged with the movable groove, one side of the slide plate (26) is fixedly connected to one side of the L-shaped frame (24), the inclination angle of the inclined plate (25) is equal to the inclination angle of the outside of the conical cylinder (1), the bottom of the conveying cylinder (3) passes through the bottom of the chassis (6) and is provided with a feed hole (14), and the top of the conveying cylinder (3) passes through the top of the conical cylinder (1) and is provided with a discharge hole (15).

4. The production equipment of microbial fermented old leaf black tea according to claim 3, characterized in that: The shaft inside the propeller (4) passes through the bottom of the conveying cylinder (3) and is rotatably connected to the middle of the bottom of the collecting cylinder (44), and a scraper (46) is fixedly connected to one side of the bottom of the shaft inside the propeller (4), and one side of the scraper (46) contacts the inner wall of the collecting cylinder (44). The gap size between the bottom end of the conveying cylinder (3) and the bottom of the collecting cylinder (44) is compatible with the specification size of the scraper (46). The shape of the collecting cylinder (44) is an inverted cone, and the position of the top of the collecting cylinder (44) corresponds to the position of the retaining ring (68). The chassis (6) is located between the conical cylinder (1) and the retaining ring (68) and is provided with a leakage hole (13). The bottom of the leakage hole (13) is connected to the top of the collecting cylinder (44). The collecting cylinder (44) and the conical cover (28) are made of transparent hard plastic.

5. The production equipment of microbial fermented old leaf black tea according to claim 3, characterized in that: The top of the conical cylinder (1) is fixedly connected to two connecting plates (67), the tops of the two connecting plates (67) are fixedly connected to a connecting shaft (16), the bottom end of the connecting shaft (16) is fixedly connected to the top of the internal shaft of the propeller (4), one side of the top of the inclined plate (25) is fixedly connected to a rotating shaft (18), the other side of the bottom end of the rotating shaft (18) is fixedly connected to a connecting frame (11), the bottom of the connecting frame (11) is fixedly connected to a scraper cylinder (10), the bottom of the scraper cylinder (10) is in contact with the top of the chassis (6), and the position of the scraper cylinder (10) is between the conical cylinder (1) and the retaining ring (68), the top of the rotating shaft (18) is fixedly connected to a first umbrella-shaped tooth (17), the connecting shaft (16) The top of the first umbrella-shaped tooth (17) passes through the rotating shaft (18) and is fixedly connected to the inside of the first umbrella-shaped tooth (17). The second umbrella-shaped tooth (19) and the first umbrella-shaped tooth (17) are arranged in a mirror image. The first umbrella-shaped tooth (17) and one side of the second umbrella-shaped tooth (19) are meshingly connected to a third umbrella-shaped tooth (20). The top of the second umbrella-shaped tooth (19) is rotatably connected to a Z-shaped frame (21). One side of the third umbrella-shaped tooth (20) is rotatably connected to a support frame (22) through an axis passing through the middle of the Z-shaped frame (21). One side of the top of the support frame (22) is fixedly connected to a motor (23). The output end of the motor (23) passes through the top of the support frame (22) and is fixedly connected to the axis on one side of the third umbrella-shaped tooth (20).

6. The production equipment of microbial fermented old leaf black tea according to claim 3, characterized in that: A fixed block is fixedly connected to one side of the inclined plate (25), and the inflation component includes an air injection cylinder (30) fixedly connected to one side of the fixed block. A piston (32) is slidably connected to the inside of the air injection cylinder (30), and the size of the piston (32) is compatible with the size of the internal space of the air injection cylinder (30). A movable rod (31) is fixedly connected to one side of the piston (32). One side of the air injection cylinder (30) is connected to an air pipe (33). One side of the fixed block is fixedly connected to a U-shaped frame (35). The outside of the output end of the air pipe (33) is fixedly connected to a hanging ring (34), and one side of the hanging ring (34) is clamped with the inside of the U-shaped frame (35). The inside of the output end of the air pipe (33) is provided with a thread. The top end of the airbag cylinder (5) is connected to a connecting bolt (36), and the outside of the top end of the connecting bolt (36) is provided with a thread. The external thread specification of the connecting bolt (36) is compatible with the internal thread specification of the output end of the air pipe (33).

7. The production equipment of microbial fermented old leaf black tea according to claim 6, characterized in that: A support rod (37) is fixedly connected to the top of the connecting bolt (36), one end of the support rod (37) is fixedly connected to a center block (38), the center block (38) is located in the middle of the connecting bolt (36), one side of the center block (38) is fixedly connected to a positioning cylinder (39), the positioning cylinder (39) is slidably connected to the inside of one end away from the center block (38), one end of the telescopic rod (40) is fixedly connected to a positioning plate (43), the connecting bolt ( A retaining ring (42) is fixedly connected to the inside of the retaining ring (42), a hole is opened inside the retaining ring (42), the diameter of the alignment disk (43) is larger than the diameter of the hole, and the alignment disk (43) is located on one side of the retaining ring (42), and a spring (41) is fixedly connected to one side of the alignment disk (43), and the spring (41) is sleeved on the outside of the telescopic rod (40) and the positioning cylinder (39), and one end of the spring (41) away from the alignment disk (43) is fixedly connected to one side of the center block (38).

8. The production equipment of microbial fermented old leaf black tea according to claim 6, characterized in that: A bracket (56) is fixedly connected to one side of the fixed frame (9), and the conveying assembly includes a conveying plate (58) fixedly connected to the top of the bracket (56), and the conveying plate (58) is located at an inclined angle on one side of the top of the conical cover (28), and the conveying plate (58) is slidably connected to a telescopic plate (59) inside, and slide grooves (60) are provided on both sides of the conveying plate (58), and clamping rods (61) are fixedly connected to both sides of the telescopic plate (59), and one end of the clamping rod (61) away from the telescopic plate (59) is slidably engaged with the inside of the slide groove (60), and a fixed plate (57) is fixedly connected to one side of the top of the bracket (56), and a rope collecting roller (62) is rotatably connected to the inside of the fixed plate (57), and the fixed plate (57) is rotatably connected to the inside of the rope collecting roller (62). ) is fixedly connected to a fixing ring (63) on one side, a rotating wheel (64) is fixedly connected to one side of the rope collecting roller (62) through an axis passing through the interior of the fixing ring (63), an insert rod (65) is slidably connected to the interior of the rotating wheel (64), a plug hole is provided on one side of the fixing ring (63), one end of the insert rod (65) is slidably connected to the interior of the plug hole, a pull rope (66) is wound around the outside of the rope collecting roller (62), one end of the pull rope (66) away from the rope collecting roller (62) is fixedly connected to one end of the telescopic plate (59), the height of the conveying plate (58) is lower than the height of the gas injection cylinder (30), and when the insert rod (65) is away from the plug hole, one end of the telescopic plate (59) slides from the inside of the conveying plate (58) to the top of the conical cylinder (1).

9. The production equipment of microbial fermented old leaf black tea according to claim 4, characterized in that: The screening assembly comprises a first sieve cylinder (47), a second sieve cylinder (48) and a bottom cylinder (49); the bottom cylinder (49) is fixedly connected to the bottom of the second sieve cylinder (48); the top of the second sieve cylinder (48) is fixedly connected to the bottom of the first sieve cylinder (47); the diameters of the first sieve cylinder (47) and the second sieve cylinder (48) are matched with the diameter of the bottom cylinder (49); the bottoms of the first sieve cylinder (47) and the second sieve cylinder (48) are both provided with holes; the size of the holes in the first sieve cylinder (47) is larger than the size of the holes in the second sieve cylinder (48); The size of the hole is such that the top opening of the first sieve drum (47) is located at the bottom of the collecting drum (44). The middle part of the first sieve drum (47) is rotatably connected to a connecting rod (50). The top end of the connecting rod (50) passes through the bottom of the collecting drum (44) and is fixedly connected to the bottom of the internal shaft of the propeller (4). The bottom end of the connecting rod (50) passes through the inside of the second sieve drum (48) and the bottom drum (49). One side of the collecting drum (44) is rotatably connected to a discharge plate (45) via a hinge. The first sieve drum (47) and the second sieve drum (48) are connected to the collecting drum (44). ) and one side of the bottom cylinder (49) are rotatably connected to a baffle (52) via a hinge; one side of the first sieve cylinder (47), the second sieve cylinder (48) and the bottom cylinder (49) are fixedly connected to a discharge box (53) at an inclined angle; the baffle (52) is located on one side of one end of the discharge box (53); the positions of the three discharge boxes (53) are different; one side of the connecting rod (50) is rotatably connected to three brush columns (51) via an axis; the material of the brush columns (51) is rubber; the bottom parts of the three brush columns (51) are The first sieve drum (47), the second sieve drum (48) and the bottom of the bottom drum (49) are respectively in contact with each other. The first sieve drum (47), the second sieve drum (48) and the bottom drum (49) are all made of transparent rubber material. One side of the first sieve drum (47), the second sieve drum (48), the bottom drum (49) and the collecting drum (44) are fixedly connected with a U-shaped clamp (54). One side of the discharging plate (45) and the baffle plate (52) are rotatably connected with a backing plate (55) through an axis. The outer side of one end of the backing plate (55) is hung on the top of the U-shaped clamp (54).

10. A method for producing old leaf black tea fermented by microorganisms, applied to the production equipment for old leaf black tea fermented by microorganisms as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: First, hand-pick or machine-pick coarse old tea fresh leaves with 3 to 5 leaves per bud, and then put the coarse old tea fresh leaves into a withering chamber for withering or wither naturally indoors, and the water content of the withered leaves after withering is controlled at 60% to 62%; S2: Then, dilute the β-glucosidase with an activity of 300U / g with warm water at 38-40°C and shake well for use, the ratio of β-glucosidase to warm water is 1:21, and the weight ratio of β-glucosidase to fresh leaves is 1:700, then evenly spray the diluted β-glucosidase on the withered leaves, and then roll them; S3: During rolling, the tea leaves are transported from the inside of the telescopic plate (59) to the top of the conical cylinder (1). At this time, the motor (23) is started to cause the second umbrella-shaped teeth (19) and the first umbrella-shaped teeth (17) to respectively rotate the conical cylinder (1) and the airbag cylinder (5). At this time, the airbag cylinder (5) will roll outside the conical cylinder (1). While rolling, the L-shaped frame (24) and the airbag cylinder (5) are caused to move up and down outside the conical cylinder (1) through the conical cover (28), thereby causing the tea leaves that fall between the conical cylinder (1) and the airbag cylinder (5) to be rolled. At the same time, the tea leaves that have been rolled and those that have not been rolled will be The scraper (10) sweeps the tea leaves from the inside of the leakage hole (13) to the inside of the collecting cylinder (44). At this time, the tea leaves that have fallen down are transported from the inside of the discharge hole (15) to the outside of the conical cylinder (1) for kneading by the propeller (4), thereby causing the tea leaves to be repeatedly kneaded. Then, the kneaded tea leaves are caused to fall into the inside of the first sieve cylinder (47) by opening the discharge plate (45). At this time, the brush column (51) sweeps the tea leaves to separate them into large, medium and small pieces, which are retained in the inside of the first sieve cylinder (47), the second sieve cylinder (48) and the bottom cylinder (49) respectively. Then, the baffle (52) is opened to take out the tea leaves. S4: Finally, the rolled tea leaves are put into a fermentation room or fermentation machine for fermentation for 3 to 4 hours. The tea leaves are turned over 2 to 3 times during the fermentation process. The fermented tea leaves are then dried. The drying process is divided into rough fire and full fire. The rough fire temperature is 100°C and the time is 20 minutes; the full fire temperature is 80°C and the time is 120 minutes. The moisture content of the finished tea after drying is ≤7%.

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