Automatic turnover device of black tea fermentation machine

Abstract

The utility model relates to an automatic turnover device of a black tea fermentation machine, which belongs to the technical field of black tea production and processing and comprises a support frame, a processing cylinder fixedly mounted on the top side of the support frame and a fermentation cylinder fixedly mounted in the processing cylinder, and a turnover mechanism and a watering mechanism are arranged outside the processing cylinder; the turnover mechanism comprises a rotating rod which is rotationally mounted on one side of the processing cylinder and extends into the fermentation cylinder, a stirring plate fixedly welded to the outer surface of the rotating rod, and a driving motor fixedly mounted on the outer wall of one side of the processing cylinder; a plurality of water spraying holes which are formed at equal intervals are formed in the rotating rod; a linkage structure is arranged between the driven gear and the piston pump. According to the automatic turnover device of the black tea fermentation machine, the rotating rod rotates to drive the stirring plate to continuously stir tea leaves in the turnover process, so that the tea leaves are in more sufficient contact with air and fermentation conditions, water can be uniformly sprayed on the tea leaves due to the design of the water spraying holes, and mixing and fermentation of the tea leaves are further promoted.

Description

Technical Field

[0001] The utility model relates to the technical field of black tea production and processing, in particular to an automatic turning device for a black tea fermentation machine. Background Art

[0002] During the processing of black tea, chemical reactions centered around the enzymatic oxidation of tea polyphenols occur, significantly altering the chemical composition of fresh leaves. Tea polyphenols decrease by over 90%, while new compounds such as theaflavins and thearubigins emerge. Aromatic compounds are significantly increased compared to fresh leaves. This is why black tea is characterized by its red tea, red tea base, red leaves, and sweet, mellow flavor. Keemun black tea is the most famous black tea in my country and the second largest tea category. Fermentation machines are required for the production of black tea.

[0003] A search revealed patent document CN221554610U, which discloses an automatic turning device for a black tea fermentation machine. The device comprises a processing cylinder, a drive motor threadedly connected to one side of the cylinder, a drive shaft fixedly mounted to one side of the drive motor, and a plurality of turning plates fixedly mounted on the surface of the drive shaft. A fermentation cylinder is fixedly mounted within the inner cavity of the processing cylinder, an atomizing nozzle is fixedly mounted on the inner wall of the fermentation cylinder, and a plurality of heating rods are fixedly mounted on the inner wall of the processing cylinder. This patent application achieves the function of turning tea leaves for uniform fermentation through the structural design of the drive motor, drive shaft, turning plates, and fermentation cylinder.

[0004] The above patent has the following defects: it realizes the function of creating a high-quality fermentation environment by setting an atomizing nozzle and a heating rod, but the atomizing nozzle is located on one side of the fermentation cylinder, and the spraying range of the atomizing nozzle is limited, and the tea leaves inside the fermentation cylinder cannot be moistened evenly and quickly, so it cannot meet production needs. Therefore, an automatic turning device for a black tea fermentation machine is proposed to solve the above problems. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the utility model provides an automatic turning device for a black tea fermentation machine, which has the advantages of strong practicality and good tea wetting effect. It solves the problem that the spraying range of the atomizing nozzle is limited and the tea leaves inside the fermentation cylinder cannot be moistened evenly and quickly.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an automatic turning device for a black tea fermentation machine, comprising a support frame, a processing cylinder fixedly mounted on the top side of the support frame, and a fermentation cylinder fixedly mounted inside the processing cylinder, wherein a turning mechanism and a water sprinkling mechanism are provided on the outside of the processing cylinder;

[0007] The turning mechanism includes a rotating rod rotatably mounted on one side of the processing cylinder and extending into the interior of the fermentation cylinder, a stirring plate fixedly welded to the outer surface of the rotating rod, a driving motor fixedly mounted on the outer wall of one side of the processing cylinder, a transmission gear fixedly mounted on the output shaft of the driving motor, and a driven gear fixedly mounted on one end of the rotating rod and meshing with the transmission gear;

[0008] The watering mechanism includes a piston pump fixedly mounted on the upper surface of the processing cylinder, and two connecting pipes fixedly connected to the output end and the input end of the piston pump, wherein one of the connecting pipes extends into the interior of the processing cylinder and is rotatably connected to a rotating rod, and a plurality of watering holes arranged at equal intervals are opened inside the rotating rod;

[0009] A linkage structure is provided between the driven gear and the piston pump, and the linkage structure includes a rack provided outside the processing cylinder, a connecting plate fixedly installed on the top side of the rack and connected to the piston pump valve stem, and the rack is meshed with the driven gear.

[0010] Furthermore, a hopper connected to the fermentation cylinder is fixedly installed on the upper surface of the processing cylinder, and there are two hoppers, which are distributed up and down, and valves are installed on both hoppers.

[0011] Furthermore, the interiors of the processing cylinder and the fermentation cylinder are both hollow, the stirring plate is located inside the fermentation cylinder, and the rotating rod is connected to the processing cylinder and the fermentation cylinder bearings.

[0012] Furthermore, a cavity connected to the watering hole is provided inside the rotating rod, and the transmission gear rotates forward and reverse.

[0013] Furthermore, the piston pump is composed of a valve housing, a check valve, a valve stem and a piston. There are two check valves, which are arranged opposite to each other. A valve plate is elastically hinged inside the check valve to perform flipping work in conjunction with the up and down reciprocating movement of the rack.

[0014] Furthermore, a guide rod is fixedly installed on the upper surface of the support frame and on one side close to the rack. An extension groove is opened inside the rack, and the top end of the guide rod extends into the extension groove to guide the rack.

[0015] Furthermore, a buffer structure is installed on the upper surface of the support frame and is wrapped around the outer surface of the guide rod. The buffer structure includes a buffer spring fixedly installed on the upper surface of the support frame and a buffer plate fixedly installed on the top side of the buffer spring and sleeved on the outer surface of the guide rod. The buffer spring is wrapped around the outer surface of the guide rod.

[0016] Compared with the prior art, the present invention provides an automatic turning device for a black tea fermentation machine, which has the following beneficial effects:

[0017] 1. When the automatic turning device of the black tea fermentation machine is in use, the rotating rod rotates to drive the stirring plate to continuously stir the tea leaves during the turning process, so that the tea leaves are more fully exposed to the air and fermentation conditions, thereby improving the uniformity of fermentation. The design of the water spray hole allows water to be evenly sprayed on the tea leaves, further promoting the mixing and fermentation of the tea leaves. The simultaneous stirring and water spraying can accelerate the transformation and fermentation process of the substances inside the tea leaves, help shorten the fermentation time, and improve production efficiency.

[0018] 2. The automatic turning device of the black tea fermentation machine can limit the rack by installing a guide rod, so that it can reciprocate linearly. At the same time, the installation of a buffer structure can not only buffer the reciprocating motion of the rack, but also serve as a limiter, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 It is a side view of part of the structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the fermentation cylinder of the present invention.

[0023] In the figure: 1. Support frame; 2. Processing cylinder; 3. Fermentation cylinder; 4. Hopper; 5. Rotating rod; 6. Stirring plate; 7. Driving motor; 8. Transmission gear; 9. Driven gear; 10. Piston pump; 11. Connecting pipe; 12. Sprinkling hole; 13. Rack; 14. Connecting plate; 15. Guide rod; 16. Buffer structure. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 4An automatic turning device for a black tea fermentation machine comprises a support frame 1, a processing cylinder 2 fixedly mounted on the top side of the support frame 1, and a fermentation cylinder 3 fixedly mounted inside the processing cylinder 2. An access door is hingedly mounted on the exterior of the processing cylinder 2, and a control device is fixedly mounted on the outer wall of the processing cylinder 2. Two hoppers 4 are fixedly mounted on the upper surface of the processing cylinder 2 and communicate with the fermentation cylinder 3. The hoppers 4 are arranged one above the other, and each hopper 4 is equipped with a valve.

[0026] In this embodiment, a turning mechanism and a water sprinkling mechanism are provided on the outside of the processing cylinder 2; the turning mechanism includes a rotating rod 5 rotatably mounted on one side of the processing cylinder 2 and extending to the inside of the fermentation cylinder 3, a stirring plate 6 fixedly welded to the outer surface of the turning rod 5, a driving motor 7 fixedly mounted on the outer wall of one side of the processing cylinder 2, a transmission gear 8 fixedly mounted on the output shaft of the driving motor 7 and a driven gear 9 fixedly mounted on one end of the turning rod 5 and meshing with the transmission gear 8; the water sprinkling mechanism includes a piston pump 10 fixedly mounted on the upper surface of the processing cylinder 2, two connecting pipes 11 fixedly connected to the output end and input end of the piston pump 10, and one of the connecting pipes 11 extends to the inside of the processing cylinder 2 and is rotatably connected to the turning rod 5, and a plurality of equidistantly arranged water sprinkling holes 12 are provided inside the turning rod 5.

[0027] Specifically, the processing cylinder 2 and the fermentation cylinder 3 are both hollow, the stirring plate 6 is located inside the fermentation cylinder 3, and the rotating rod 5 is connected to the processing cylinder 2 and the fermentation cylinder 3 by bearings. A cavity is opened inside the rotating rod 5 and communicates with the watering hole 12, and the transmission gear 8 rotates forward and reverse.

[0028] In this embodiment, the piston pump 10 is composed of a valve housing, a check valve, a valve stem and a piston. There are two check valves, and the two check valves are arranged opposite to each other. A valve plate is elastically hingedly installed inside the check valve to cooperate with the up and down reciprocating movement of the rack 13 to perform flipping work.

[0029] In order to achieve simultaneous stirring and water spraying, a linkage structure is provided between the driven gear 9 and the piston pump 10. The linkage structure includes a rack 13 arranged on the outside of the processing cylinder 2, and a connecting plate 14 fixedly installed on the top side of the rack 13 and connected to the valve stem of the piston pump 10. The rack 13 is engaged with the driven gear 9.

[0030] It's understandable that simultaneous stirring and water spraying accelerates the transformation and fermentation of tea substances. This design helps shorten fermentation time and improve production efficiency. It also diversifies the black tea fermentation machine's functions, adding not only turning but also stirring and water spraying. This improves the overall performance and flexibility of the equipment, meeting diverse fermentation needs.

[0031] In order to realize the linear reciprocation of the rack 13, a guide rod 15 is fixedly installed on the upper surface of the support frame 1 and on one side close to the rack 13. An extension groove is opened inside the rack 13, and the top end of the guide rod 15 extends into the extension groove to guide the rack 13. A buffer structure 16 is installed on the upper surface of the support frame 1 and is wound around the outer surface of the guide rod 15. The buffer structure 16 includes a buffer spring fixedly installed on the upper surface of the support frame 1 and a buffer plate fixedly installed on the top side of the buffer spring and sleeved on the outer surface of the guide rod 15. The buffer spring is wound around the outer surface of the guide rod 15. By installing the guide rod 15, the rack 13 can be limited to make it reciprocate linearly. At the same time, by installing the buffer structure 16, the reciprocation of the rack 13 can be buffered and it can also serve as a limiter to increase the service life of the device.

[0032] The working principle of the above embodiment is:

[0033] During use, the black tea is introduced into the fermentation cylinder 3 through the upper hopper 4, and then the driving motor 7 is started. The rotating rod 5 is driven by the engagement of the transmission gear 8 and the driven gear 9, and the rack 13 is driven to move at the same time. Since the transmission gear 8 rotates forward and reverse, the rack 13 moves back and forth up and down and drives the piston block to move up and down through the connecting plate 14. The reciprocating motion of the piston causes the working volume of the pump chamber to change periodically, thereby realizing the suction and discharge of the liquid. The liquid is transported to the inside of the rotating rod 5 through the connecting pipe 11 and sprayed out through the water sprinkling hole 12, so that the water can be evenly sprayed on the tea leaves, further promoting the mixing and fermentation between the tea leaves, and effectively solving the problem that the spraying range of the atomizing nozzle is limited and the tea leaves inside the fermentation cylinder cannot be wetted evenly and quickly.

[0034] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical connection methods.

[0035] Any connection method can be implemented as long as it can achieve its beneficial effects. In addition, the electrical components appearing in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Technicians in this field can control the electrical components through simple programming, and the existing disclosed power connection technology is also common knowledge in this field, so its specific structural composition and working principle will not be described in detail in this embodiment.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic turning device for a black tea fermentation machine, comprising a support frame (1), a processing cylinder (2) fixedly mounted on the top side of the support frame (1), and a fermentation cylinder (3) fixedly mounted inside the processing cylinder (2), characterized in that: The outside of the processing cylinder (2) is provided with a turning mechanism and a water sprinkling mechanism; The turning mechanism comprises a rotating rod (5) rotatably mounted on one side of the processing cylinder (2) and extending into the interior of the fermentation cylinder (3), a stirring plate (6) fixedly welded to the outer surface of the rotating rod (5), a driving motor (7) fixedly mounted on the outer wall of one side of the processing cylinder (2), a transmission gear (8) fixedly mounted on the output shaft of the driving motor (7), and a driven gear (9) fixedly mounted on one end of the rotating rod (5) and meshing with the transmission gear (8); The watering mechanism comprises a piston pump (10) fixedly mounted on the upper surface of the processing cylinder (2), and two connecting pipes (11) fixedly connected to the output end and the input end of the piston pump (10), wherein one of the connecting pipes (11) extends into the interior of the processing cylinder (2) and is rotatably connected to the rotating rod (5), and a plurality of watering holes (12) arranged at equal intervals are opened inside the rotating rod (5); A linkage structure is provided between the driven gear (9) and the piston pump (10), the linkage structure comprising a rack (13) provided outside the processing cylinder (2), and a connecting plate (14) fixedly mounted on the top side of the rack (13) and connected to the valve stem of the piston pump (10), wherein the rack (13) is meshed with the driven gear (9).

2. The automatic turning device for a black tea fermentation machine according to claim 1, characterized in that: A hopper (4) connected to the fermentation cylinder (3) is fixedly mounted on the upper surface of the processing cylinder (2), and the number of the hoppers (4) is two, and the two hoppers (4) are distributed up and down, and valves are installed on both hoppers (4).

3. The automatic turning device for a black tea fermentation machine according to claim 1, characterized in that: The interiors of the processing cylinder (2) and the fermentation cylinder (3) are both hollow, the stirring plate (6) is located inside the fermentation cylinder (3), and the rotating rod (5) is connected to the bearings of the processing cylinder (2) and the fermentation cylinder (3).

4. The automatic turning device for a black tea fermentation machine according to claim 1, characterized in that: A cavity communicating with the water sprinkling hole (12) is provided inside the rotating rod (5), and the transmission gear (8) rotates forward and reverse.

5. The automatic turning device for a black tea fermentation machine according to claim 1, characterized in that: The piston pump (10) is composed of a valve housing, a check valve, a valve stem, and a piston. There are two check valves, which are arranged opposite to each other. A valve plate is elastically hingedly installed inside the check valve, and is turned over in coordination with the up and down reciprocating motion of the rack (13).

6. The automatic turning device for a black tea fermentation machine according to claim 1, characterized in that: A guide rod (15) is fixedly mounted on the upper surface of the support frame (1) and on one side close to the rack (13). An extension groove is provided inside the rack (13), and the top end of the guide rod (15) extends into the extension groove to guide the rack (13).

7. The automatic turning device for a black tea fermentation machine according to claim 6, characterized in that: The upper surface of the support frame (1) is provided with a buffer structure (16) wound around the outer surface of the guide rod (15), the buffer structure (16) comprising a buffer spring fixedly mounted on the upper surface of the support frame (1) and a buffer plate fixedly mounted on the top side of the buffer spring and sleeved on the outer surface of the guide rod (15), the buffer spring being wound around the outer surface of the guide rod (15).

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